AI-assisted recomps and decomps - where do you draw the line?

AI-assisted recomps and decomps - where do you draw the line?

You'd have to be living under a rock to have not noticed the recent boom in static recompilation and decompilation projects - it seems like every day, multiple projects are announced; from popular titles to more obscure games with niche audiences; at the rate they're appearing it feels like it's only a matter of time until every game is playable on every platform.

For example, just recently The Legend of Zelda: The Wind Waker has made its way to Windows and Mac natively - bringing with it high frame rates, widescreen support, improved rendering, HD texture pack support and more... AstroCore has brought Super Mario Galaxy to PC, gen1recomp has added FireRed and LeafGreen, the list goes on.

It's no surprise to anyone that this boom in projects has been almost fully in part to the rise of AI assisted development or in some cases, projects that are entirely vibe-coded.

Many of these projects disclose outright the fact they were built with help from large language models such as Claude Code. For example, The Wind Waker recomps readme says it was developed "with substantial AI assistance for code, testing, documentation and debugging".

So here's the question, beyond the ethical and environmental impacts; these recomps and decomps cost nothing. They’re made in part by people in their spare time and can provide easy access to games that are perhaps stuck on dead or hard to find hardware, run or perform badly on their original platforms; or that the original publisher may have delisted entirely. Yet as soon as an LLM shows up in the credits a big part of the reaction devolves to "AI = bad", whatever the resulting product may look like. Of course, some of that criticism is absolutely well founded: people worry about undocumented, unoptimized and spiraling codebases; about the craft and passion of hand reverse-engineering and about how these models were trained in the first place.

So who's really right? Is it the people who see AI-assisted ports as a shortcut that cheapens the scene, or the people who think a free, working, improved and accessible version of a game they love is worth having however it was made?

Where do you personally draw the line?

Back in August, Scarlet's community check-in on how we cover AI-assisted projects garnered more than 360 replies. Scarlet suggested that when a project we feature uses AI and makes it clear that it does; we will endeavor to inform you depending on of course on the information publically available and to the extent that you should expect from an independent website providing simple news coverage. Giving anyone who would rather avoid these projects a clear indicator, without anyone having to dig through repositories for hints themselves.

So let us know:
  • Where do you draw the line on using LLMs in such recomp and decomp projects?
  • Would you play a game knowing much of its port was written with AI? Or would you prefer to avoid it?
  • If an AI-assisted recomp were the only way left to play a game you cherish would you take it? Or would your principles keep you waiting for an official remaster?
As always, keep it civil please...
 
That's kinda where the line defaults to, isn't it? If your recompilation project doesn't provide any PC native enhancements and runs worse/is less accurate than emulation, then there's no good reason for it to exist in the first place.

Recomps are also really good for game preservation though, as well as removing ugly monetization, always-online DRM, and live service nonsense. They have the potential to make Stop Killing Games a reality even if politicians taking money from industry lobbyists don't want that happening.

And on your last point, that's already happening (to an extent). Free, open source versions of Adobe apps are now available, for instance. They're by no means perfect yet, but I'd much rather deal with a few bugs and quirks than pay a yearly subscription fee to such a greedy and anti-consumer company.

As an alright photographer, I have tried the Lightroom AI clone. It is really, really bad, even compared to any open source software. It misses tons of features and doesn't have an human in mind for its usage. Now a better alternative is something like RapidRaw which is using quite a lot of AI too, but is made with humans who actually know photography and how things are supposed to be made. I actually prefer it too any professional software now, and I think this is how software should be done with AI. We clearly aren't to a point where you can just say "make this but free and better", human guidance is still very much needed.
 
For me, "AI = bad". :gun:
I have some yearly boring mandatory courses that I have to do as part of my job, but I hate doing them so I just let the videos play out in mute, and then for the tests... I use AI to give me the right answer. They don't pay me to do these "homeworks" so the quicker it's over, the better.

There's good and bad use for AI. Crap like "Mafia Music For Real Dangerous Minds" AI music, yeah, that's garbage. 🤣

Oh, and of course AI channels that pretend to be humans. There's people who fall for it.



At least it says it's AI now, but before it didn't.
 
If people are using proprietary AI to decomp proprietary software

And all the heads of the companies are billionaire buddies

How long before there are safeguards in place within AI to stop helping with decomp?

And again

If all the funders of these big companies also fund politicians, how long before decompiling software and distributing this software becomes illegal?
I think you missed a crusial part, Russia and China do not give a fuck about western software companies.
 
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While I reached the stage where I don't give a shit whether something is AI-coded or not at this point, I'll always stick to my belief...people need to test whatever the fuck Claude/Astra/etc churn out, they gotta do at least this. A few projects, like the Minish Cap port to PS1 was tested by someone else and they found out it doesn't even run on real hardware.

And in the case of something made for the Wii or 3DS, I don't want my console to fail on me/brick because a moron relied on AI to slop their way through a project, without checking if it actually works. I'll die on this hill, I don't care whether everyone else agrees with me or not.
 
Last edited by Cris1997XX,
Where do you personally draw the line?
Personally? Won't... because:

- Is AI this good already at generating code? Last time I handed a script for debugging to AI it got broken.

- It's costing basically nothing... and if AI is already this good... then what's the point since now anyone can do it with "Make Zelda work in Chromebook and make no mistakes".

- Will I personally use/download these "vibe coded" projects? No... because if AI is already making it easy then I'd prefer to "vibe code it" myself.

- Not sure who these ports and decomps are aimed to, but if I had to rely on AI for these kind of things I'd focus in improving Emulation and not just porting the 5 most popular games out there... like why?

Just makes no sense... to port stuff just for the sake of porting stuff.
 
If it works and is tested, fine by me.

I have done a small scoped thing, just for myself derived out of passion for a game, and am amazed how well it performed, how capable it made the project maintenance (at my request).

You can't just slap a "decompile this to x language" and expect that the result is humanly readable at the first time.

I'd say to let the AI rewrite the code until you can comprehend it, feel safe in understanding what it does and then go from there.
 
I'm in a weird position a little bit on AI because I'm not for or against inherently in other areas outside of art (I think it has places in use of say, post-production ie it's use in The Brutalist, but anywhere else, but I will not watch or listen to AI generated garbage). But as I always say, black and white thinking/mentality is frankly never good. I also prefer human : human interaction, and really hate reading output from AI conversationally, so I'm not out here using chatbots to something to talk to.

I'm a software engineer professionally and I was a very late adopter of using AI because I was being stubborn but I'm not going to lie, it doesn't make my job easier but it does shift what a lot of my job is doing a lot of the times, and I don't necessarily hate that. I still don't use it for everything I do, professionally or personally, but it is a nice tool to use. I also think there is a clear difference between vibe coding and using AI assistants to vibe code to work too, like if someone vibe coded a decomp or recomp and it just doesn't work well or at all, people aren't going to use it just as no one out here is using garbage code over the years I previously handwrote and published on github (I mean, I hope).

BTW, anyone who is taking a very firm stance against AI code should probably keep in mind nothing they use at this point has not been touched by an AI assistant agent, and yes, including the Linux kernel, and yes, including commits from Linus. And frankly, no one I know in the industry isn't using AI in some capacity in their day to day loads either. If you are a SWE/similar role, and you don't use it in your job I think you are either lying to some degree, or if you truly don't, you are very much in the minority there.
 
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Im a software developer by profession, the company i work for provided a premium license to Copilot (that in the end is just OpenAI GPT) and said "use it to deliver software faster or be reprimanded".

I mainly develop backend and for me UI has always been a major pain in the ass, so i settled on developing backend myself, then provide the AI with the decoumentation and "make me a basic UI". It looks extremely generic, not much different from when back then bootstrap 4 got released and every website looked the same, but i appease management and use the free time to do my own stuff.

Said that, i do not like AI, ignoring the "everything needs AI" bs that is going on currently, the company hired "vibe coders" and gave them to me as colleagues, unfortunately these half wits did not a single lesson of software development, so much so they have no idea what stack, heap or even basic GIT commands are.

How can my value, study effort and passion not be diminished by people that just sweet talk a GPU for a living.
 
Im a software developer by profession, the company i work for provided a premium license to Copilot (that in the end is just OpenAI GPT) and said "use it to deliver software faster or be reprimanded".

I mainly develop backend and for me UI has always been a major pain in the ass, so i settled on developing backend myself, then provide the AI with the decoumentation and "make me a basic UI". It looks extremely generic, not much different from when back then bootstrap 4 got released and every website looked the same, but i appease management and use the free time to do my own stuff.

Said that, i do not like AI, ignoring the "everything needs AI" bs that is going on currently, the company hired "vibe coders" and gave them to me as colleagues, unfortunately these half wits did not a single lesson of software development, so much so they have no idea what stack, heap or even basic GIT commands are.

How can my value, study effort and passion not be diminished by people that just sweet talk a GPU for a living.

I know I shouldn't laugh. "Sweet talk a GPU for a living" is so funny.
 
That's kinda where the line defaults to, isn't it? If your recompilation project doesn't provide any PC native enhancements and runs worse/is less accurate than emulation, then there's no good reason for it to exist in the first place.

Recomps are also really good for game preservation though, as well as removing ugly monetization, always-online DRM, and live service nonsense. They have the potential to make Stop Killing Games a reality even if politicians taking money from industry lobbyists don't want that happening.

And on your last point, that's already happening (to an extent). Free, open source versions of Adobe apps are now available, for instance. They're by no means perfect yet, but I'd much rather deal with a few bugs and quirks than pay a yearly subscription fee to such a greedy and anti-consumer company.
In some extended sense of this entire ordeal, I am hoping for someone to completely reverse engineer 'The Crew' with its server infrastructure requirements and everything surrounding it, release it, and to stick it up Ubisoft's ass, since 'The Crew' was the spark to the bomb that was/is SKG.

And yea, I'm aware that 'The Crew' wouldn't really be a "recomp done via LLM assisted tools", since it exists natively on PC, but that's why I said "In some extended sense", since it might still get done for the server binary part and also taking apart the game itself to allow for custom game servers. Ubiturd would be fuming :yay:
 
At first I was AI=Bad, then i started thinking, the day mario 64 decomp came it got ported to many consoles, i thought it was gonna be the same for other decomps but that did not happen. Now, seeing movement on many console scenes make me happy and its thanks to ai
 
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  • Where do you draw the line on using LLMs in such recomp and decomp projects?
  • Would you play a game knowing much of its port was written with AI? Or would you prefer to avoid it?
  • If an AI-assisted recomp were the only way left to play a game you cherish would you take it? Or would your principles keep you waiting for an official remaster?
Considering my understanding of how either work, decomp: none or as little as possible, as it's supposed to be a passion hobby and has to be maintainable; recomp: sounds like something automated anyway, so probably not against LLM use here.

I prefer avoiding slop ports. That said, if I know the author knows what they're doing and don't have a track record of abandoning broken projects, I may consider it.

Why "official remasters" when it's possible a separate team does a proper decomp independently? With how things are nowadays, it's more likely the community does it on their own... But about that, unless there was a very good reason to play it (e.g. making multiplayer with friends easier than using an emulator) and the slop recomp didn't suck ass, absolutely not. Not consciously.

A more generic answer: LLMs have been proven to be capable of generating almost anything on their own. However, vibe coding is an unmaintainable mess. The passion and love is nowhere to be found. For someone who cares about what went into a project, despite almost not being involved at all in creation of such projects, it is sour. However, at least games aren't something I'd run 24/7 and rely on with my data and security... right...? :unsure:
 
Last edited by lightwo,
AI = (Great for reverse engineering)

reverse engineering is a process that is directly verifiable and "loopable", thus it's more or less the perfect workload for AI where you WILL get insanely results.

For creative work where "taste" is a factor well that's where you might see slop. (but that is not what reverse engineering/decompiling is)

And for those that say that it's impossible to maintain and read the code that the AI creates, well recent models are getting better at writing pretty code.

I think that AI is something people loves to hate. Just like how people loves to hate Nintendo or licorice (despite never really tried it)

People think they are of the cool popular opinion if they talk about AI slop.

But actually, soon, very soon, AI WILL be better at developing than even the most senior and skilled human developers, it's a fact. And AI is already much much faster devs and better than most devs. That is also a fact.

People claiming otherwise are living under a rock or just in denial to the truth.

There is nothing here to argue against. Perhaps it's not the future you would like to see, that's understandable..
But it is the future we'll have regardless of what you want
 
I've seen tons and tons of "Mostly AI" recomps where the main repo is basically all done by Claude or Codex, and the end result runs like complete garbage

THAT is bad usage of AI, because of quantity (of recomps done) over quality (of said recomps)
 
I said I wasn't going to wade into this, but there's too much ignorance, hypocrisy and just shortsighted nonsense to not address (I want to be clear: I'm not calling anyone ignorant, a hypocrite, etc., I'm saying I think the opinions can be ill-conceived and poorly addressed, not dis-similar to an AI led project). I will not directly quote most of this, because I'm not trying to pick a fight, I'm genuinely just trying to address what I see as nonsensical arguments.
For me, "AI = bad". :gun:
You, in particular, have absolutely no leg to stand on in this argument; you've been called out on this before. You like to sit there and pretend you believe all AI use is bad, and then spend 20 minutes glazing a developer for what you view as a super cool project that no one else would touch etc. without acknowledging that it's AI led. i.e. you go out of your way to comment on nearly every switch port you come across. 90+% of the topics I've seen you comment on are AI assisted in some way. You claim to be some purist but you completely ignore it when it suits you, or, worse arguably, you can't tell the difference.
If it's the same technical debt bullshit that AI cleverly hidden away until too late later then yea it's shit.
Technical debt is not unique to AI. I understand where you're coming from, but having to deal with supposedly educated developers on a regular basis who don't even half-ass comment their code, I've seen the technical debt pile up for literally decades prior to the introduction of AI. The difference now is I can force the LLM to comment the code for me; literally any project can become more readable/more extensible simply by having it walk through the code, line by line, and explain what isn't obvious. Is it perfect? Hell no. Is it better than someone who refuses to comment at all? Arguably. Will it replace a knowledgeable SWE who actually does their job well? Of course not. And I think that's where a lot of this discourse breaks down (I'll address further as I go along): failure to see any kind of nuance to the argument at all. I'm not, by far, a "all AI is bad, mmkay?" person, but I also hate seeing it shoe-horned into every. single. release. imaginable. i.e. I don't need AI to parse my voice as I'm taking notes and decide arbitrarily which words I wasn't actually trying to use (I believe Google calls this "feature" Rambler?"). And I don't think anyone else should use this feature either. I don't know of ANY scenario in which a human shouldn't be editing their own words when trying to communicate with others (or themselves in the case of notes) to ensure clarity, completeness and the actual content. AI cannot replace critical thinking.
To be fair, I kinda fail to see why old video game recomps are such a big deal. Emulators already get you 99% there anyway.
They don't. Emulators don't introduce new features outside of QOL improvements like save states, fast forward & rewind, scaling and post-processing. Recomps can introduce these things as well as support for texture packs, widescreen hacks, multiplayer improvements/hacks, porting to a platform that doesn't have an emulator, optimization, etc. There are A LOT of improvements available to recomps that just don't exist in emulators (not because they can't; I'm sure most of these things could be accomplished, just haven't been seen as necessary except in targeted cases? I'm not sure of the reasoning behind not bringing some of these improvements to some emulator somewhere).
Now the funny part will be when high profile software will be recomp'd. That is where you will see a true impact on real life with thousands of jobs decimated because someone in their garage open sourced some closed softwares.
I would argue that if your work can reliably be replaced by a kid in his garage with a $20 claude subscription, it's almost a moral imperative that it should be. I'm not talking about art here; I'm saying logic and functionality should be improved where it can be. I'm a huge proponent of SWEs utilizing AI to optimize and improve; it's a case where it's a tool and implemented correctly can go further than a SWE or AI alone. I also believe that if you are replaced by slop, in the short term, yes it sucks. In the long term, you either get to invest your time and focus in something else that will benefit from your expertise or (as many companies have experienced with their mad dash to use AI and layoff actual developers) it gives you leverage to return when your employer learns the hard way that AI is not autonomous, it is still a tool, and the vibe coding script kiddie they hired to replace you isn't adept enough to improve the results (it's more than just prompting claude "fix this and make it better, no mistakes") or fix the bugs. In my experience, AI is actually pretty good at fixing bugs, but you have to care at least a little bit, and most of these vibe coders don't. I have witnessed first hand developers being able to leverage their unceremonious dismissal to return making 50-70% more than when they left because they have to spend their first 3 weeks back in the role toiling over slop to align with the rest of the project and actually work. I work in IT, and this whole situation reeks of the issues I've dealt with in the past where my team was replaced by an offshore contractor, only to be called up 2 weeks later and have to listen, through their tears, as my former employer begs me to come back and fix their arrogant mistakes. "Please, everything is down and we just need it to be functional and none of these new people is familiar enough with the stack to make it work. We'll pay double!" No, you're going to be paying 10x because now you have to hire and train actual skilled labor to replace all of us, as we've all accepted new positions and will not bail on a new relationship that was established in good faith.
<a bunch of comments about how vibe coders don't understand coding fundamentals and the slop they churn out is trash>
I don't have a lot of experience in this area (the only language I work with daily and am competent with is Powershell), but it has been my limited experience and continues to be my conjecture that slop will always lose out to something done well. i.e. if I have a choice between a slopped project and an engineered project that accomplish the same things, I'll go with the engineered project by default in 99% of cases. Even if they don't have feature parity, the engineered project is almost always implemented better, better optimized and is easier to build upon. That being said, if the slop is the only avenue to achieve the desired result, yes, it will be utilized. As for the whole "I'm not against it if someone knows what they're doing", it's thinly veiled gate-keeping. I understand the argument intellectually (and to be fair it is often true in practice for people who just don't give a shit) but the problem is that the AI tools can do anything you think only a skilled coder can do if properly prompted and more than 30 seconds is spent on the task. "If they encounter an issue, and they don't understand the fundamentals, they won't be able to fix it." This is patently untrue. AI is adept at not only explaining complicated concepts but fixing issues on the fly. It still has to be identified as an issue, and you may have to iterate several times to get it right, but both of those things are true of human led projects as well. Honestly, every argument made in this vein is exactly as pertinent as making it against someone else who (also) knows absolutely nothing about code but hires someone to develop something for them: no, they can't fix the issues, and no, they can't explain how it works. And no, they don't have a clue as to how to continue. They have to call the person they paid to develop it and continue to pay to continue to improve or add functionality. The exact same thing can be said about AI coding; I just have to take my issue back to the prompt and it will often identify and fix it. What's the major difference? The size of the transaction. It may cost thousands, hundreds of thousands, or millions of dollars properly engineer a software project using human labor whereas the same thing can be accomplished with a few hundreds to thousands of dollars of AI tokens. Again, we can agree that an unskilled practitioner may not be able to identify the actual issues in order to address them, but properly motivated and "skilled" (heavy sarcasm here) slop kiddies can improve their projects. In practice, they often don't, but the pretense that they can't is misinformed. It's a skill issue, not a tool issue. Get good.
As an end user, if someone spent 10 months slaving away at the code on their own OR vibe coded it in a week, I'll never know.
This is pretty common. 80+% of people can't identify a difference between a slop project and a properly engineered one without digging into the code, and most people aren't really qualified to do that (not trying to gate-keep here; I'm merely pointing out that, for instance, I cannot tell the difference between slop and human code on a python project because I'm not familiar enough with python to know what's redundant, what's poorly thought out, etc.). That same argument is valid for the above conversation about whether or not slop projects can reasonably achieve parity with human coded ones as well though, and it once again comes down to motivation and "give a shit".
I know there's folk out there that consider any AI involvement a black mark against any project and won't entertain it. I'd be surprised if those folk also applied the same logic to say, cutting grass. "i can't step on your lawn cos you haven't cut each blade of grass by hand and have instead used a lawnmower to help you". AI is just a tool, like the lawnmower.
The same thing can be said about commercial products: once the code is compiled, you can't reasonably just look at it and determine if it was slopped, AI assisted, or just good ol' fashioned human intellect. Unless something is glaringly bad or generic, it can be difficult to tell. The proof of that is just how many commercial products already exist that have been AI assisted in some form or fashion. It's similar to the old "tabs vs spaces" argument: there are solid arguments for both sides, but once it's compiled, it's the same code.
<argument against badly made slop when it's very clear it's slop and is poorly made/implemented>
I think the biggest thing to address here is the same as with a very poorly created human coded project: if it's shit, no one will want to use it or it will motivate people to improve it. If you identify something as shit and continue to use it, you've decided that it ultimately doesn't matter. If you seek to improve it, you're fixing the problem (and honestly should be praised for it, regardless of the code's provenance). If you choose not to use it, complain about it, and rock back on your heels, patting yourself on the back for "fighting the good fight against the slop overlords" without contributing anything other than your opinion to the conversation, you are contributing EXACTLY as much to the entire situation as anyone who simply STFU. You haven't made anything better, you aren't using the product and you haven't contributed meaningfully to the conversation surrounding it. You're noise. You are the slop of human beings.
how long before decompiling software and distributing this software becomes illegal?
It would be pretty ironic if the biggest acquirers of illegally obtained labor in the modern world suddenly started working avidly against piracy/redistributing someone else's work, eh?
If your de/recomp/game mix is entirely vibecoded (entirely LLM-made), and you have no ounce of knowledge on programming, then that's where I draw the line within these projects. I want to see on a GitHub page that there's been a bunch of contributors to a project, not a user or two, and claude.
More of that gate-keeping shit. What does it matter how many people contributed to it? Does that inherently change the value or quality of the project? If Stardew Valley had been built by ConcernedApe AND Claude, would that make it any less fun to play? Personally, I'm all about the end result, and the value provided. Of course, this is just my opinion and you are free to attack it; it IS subjective, I won't pretend otherwise.
If any The Legend of Dark Witch/Brave Dungeon game where to get de/recompiled with ai then hell yeah cause I hate the creator of the game and there needs to be someone out there that can his his damn games.
You just said...nvm. You know you're a hypocrite, I'm not going to waste the time.
While I reached the stage where I don't give a shit whether something is AI-coded or not at this point, I'll always stick to my belief...people need to test whatever the fuck Claude/Astra/etc churn out, they gotta do at least this.
NO argument, whatsoever here. Everything is cum gratis salis in the homebrew world, and you're assuming a certain amount of risk regardless. But to blindly pump out crap from any source is a detriment to the entire scene. However, it does boil down to what I said above about people not being qualified to look at the source and tell if it's quality or shit.
A few projects, like the Minish Cap port to PS1 was tested by someone else and they found out it doesn't even run on real hardware.
Off topic, but that's bananas. How lazy can you possibly be?
And in the case of something made for the Wii or 3DS, I don't want my console to fail on me/brick because a moron relied on AI to slop their way through a project, without checking if it actually works or not. I'll die on this hill, I don't care whether everyone else agrees with me or not.
You JUST made the argument that all code needs to be tested; that responsibility is as much on you as it is on the developer.
BTW, anyone who is taking a very firm stance against AI code should probably keep in mind nothing they use at this point has not been touched by an AI assistant agent, and yes, including the Linux kernel, and yes, including commits from Linus.
Listening to Linus' point of view and his breakdown of the situation actually helped me a lot on this subject. I was very much an "AI = BAD" person at one point, and listening to someone I respect wax intellectually on the subject was something I wasn't really prepared for. Do I agree with him 100%? No, but he makes valid arguments and doesn't glaze either side of it. Helped me to realize some of the opinions I had on the subject were at least partially misguided.
If you are a SWE/similar role, and you don't use it in your job I think you are either lying to some degree, or if you truly don't, you are very much in the minority there.
I am far from a developer and I use it every day to debug or improve my code. And I often times have to tell it that it's wrong or just plain ignore it. But it often times comes in clutch as well, pointing out something that would've surely caused some edge case failures. The tool is only as powerful as the dipstick behind it, so I'm by far not the best person to talk about it (I'm far from an expert).

tl;dr: as with anything else, there is nuance in this argument. If you're an absolutist, you're objectively wrong, either way. If you take emotion out of it, I believe anyone can see the pros and cons to each side, even if their preference is in the opposite direction. I'm not asking anyone to change their opinion on the subject; that would be silly. Just asking for some critical thinking. "It can't be done!" is not the same as "It isn't being done!" A lot of things that are pitched as impossible are simply unlikely at the moment, and we should be intellectually honest about that.
 
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