Gen1Recomp - Play Pokemon Red, Blue & Yellow in 3D | GBAtemp.net

Dekopon - (Mostly) Fullspeed 3DS Emulation on Nintendo Switch

PalindromicBreadLoaf · 2026-07-16T19:11:42+00:00

Credit goes to StickyMangoRice for the logo. Dekopon is a port of Azahar to the Nintendo Switch. The current release is version 2.2.1. Performance is very title dependent, and will be improved with time, but many games can be played fullspeed right now, sometimes even with stock handheld clocks. (I do recommend at least bumping the CPU up to dev unit clocks in handheld just to reduce shader compilation stutter and smooth out some rough frame pacing.) Depending on the game, you can get up to 4x resolution scaling at full speed in docked/handheld charging (although really 3x is all you need in handheld). If you want to try any new3ds exclusive games, they won't run well. All four of the 3DS' cores run on a single emulation thread, so we're at a 1.2GHz difference (2GHz single core where as the 4 3DS cores each run at 804MHz) from what we would need (and architecture changes from 3DS to Switch cannot account for that much raw clock speed loss). The solution would be to split the emulation threads on new3DS games, but that's a ton of work for very very little gain. See here for a full compatibility chart: Dekopon Compatibility Chart Feel free to share your own compatibility findings here and I'll update the sheet accordingly. Also share any issues you have and I'll do my best to fix them. Downloads can be found here: Releases Along with the source code here: Source ROMs default location is /switch/dekopon/roms/ All formats that Azahar natively supports are supported here too. Different screen layouts can be cycled through via pressing the right stick. Pressing '+' on a game shows information about it, including updates and dlc. Enjoy! Also if someone wants to make a better UI for this I wouldn't be offended. I can't make a good UI to save my life, but the one included at least kinda functions to get you into a game.

forgotten-865

Well-Known Member

Newcomer

Level 2

Today at 2:42 PM

A native LÖVE2D recreation of Poke Red, Blue and Yellow. The engine and map behavior are hand-written Lua; game data and graphics are decoded from a ROM supplied by the player.

Caution

We are NOT affiliated with the website gen1recomp[.]com That website is not run by this project, was not authorized by us, and we have no idea who operates it. It is impersonating this project; do not download anything from it, and treat anything it hosts or claims as untrustworthy. Even if the site currently links back to this repository, the people behind it can change its content at any time, so nothing on it should ever be trusted. This GitHub repository and the Discord linked below are the only official sources for this project.

This project does not include a ROM, emulate the Game Boy, transpile assembly, or download a disassembly. A canonical US Poke Red, Blue, or Yellow ROM is the only game content input.
The ROM is verified, used during import, and then released from memory. It is not copied into the cache. Later launches load the private generated cache and do not ask for the ROM again. Red, Blue, and Yellow can all be imported and played side by side.

Quick Start

Open the desktop app. On first boot, choose your legally obtained .gb / .gbc file or drop it onto the window. Import takes a few seconds and the game starts automatically.
Only the canonical 1 MiB US Red, Blue, and Yellow ROMs are accepted. The importer verifies SHA-1 before creating any game data:

Red: ea9bcae617fdf159b045185467ae58b2e4a48b9a
Blue: d7037c83e1ae5b39bde3c30787637ba1d4c48ce2
Yellow: cc7d03262ebfaf2f06772c1a480c7d9d5f4a38e1

The packaged app contains neither a ROM nor pre-extracted game data. Music, sound effects, and cries are synthesized while the game runs from compact audio channel programs copied out of the verified ROM.

Nintendo Switch

Releases ship an SD-ready gen1recomp-*-switch.zip (issue #531). Runtime target is pinned love-nx 11.5-nx1. Requires a console that can run Switch homebrew. Hardware evidence: OLED (author) and V1 / Erista boot (community).

Players: docs/switch-install.md — download the zip, extract at the microSD root (install or update), title-override launch, import your own legal ROM, Joy-Con controls and shortcuts.
Builders: docs/switch-build.md — --fetch / --loose / --fused, toolchain, Docker fallback, and CI vs release (path-gated ubuntu selftest, canonical fused PR artifact, release hard-fail).

Limitations, Dusklight-derived method, and how we tested: docs/switch-development.md and docs/switch-hardware-evidence.md. Community help — especially HOS / love-nx packaging and broader hardware coverage — is welcome.

https://github.com/bryanthaboi/gen1recomp