Homebrew Homebrew game Slay the Spire 2 - Switch Port

ChanseyIsTheBest · 2026-08-26T05:54:42+0100

Slay the Spire 2 — Nintendo Switch port (Godot + NativeAOT wrapper)

This is a native wrapper / loader that runs the original ARM64 Android build of Slay the Spire 2 on Switch homebrew. It contains no game code and no game assets.

Multiplayer/Mods isn't supported yet
Some enemy attacks have visual issues due to Mesa driver issues

Thanks to
dantico + @Nagaa for Vulkan driver
@delson_anr for all his AOT Godot work that made this port possible
Ekyso for making the original Slay the Spire 2 Android port which you need files from

https://github.com/ChanseyIsTheBest/sts2_nx

Make sure if you try this out you give the readme a good read because you need to build the AOT libsts2.so file yourself + need files from multiple sources.

lvlv · 2026-08-26T11:24:44+0100

You’re absolutely a genius.

mathew77 · 2026-08-26T11:31:37+0100

@ChanseyIsTheBest
Wow, thank you!..

Unfortunately, can't find the file collect-assemblies.ps1 anywhere. It is not in a sts2_nx repo for right now..

Please, take any hits where to find it!

The error message is:

.\scripts\collect-assemblies.ps1 : The term '.\scripts\collect-assemblies.ps1' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

ChanseyIsTheBest · 2026-08-26T11:42:07+0100

mathew77 said:
@ChanseyIsTheBest
Wow, thank you!..

Unfortunately, can't find the file collect-assemblies.ps1 anywhere. It is not in a sts2_nx repo for right now.. Please, take any hits where to find it!

The error message is:

Sorry that's super sloppy of me I've uploaded it now so it will work.

mathew77 · 2026-08-26T12:09:22+0100

@ChanseyIsTheBest
Thank you!.. The first script did good, but second one (Dockerfile.aot) in the end got that error (steps 1 — 5 were completely OK):

Code:

 => [2/7] RUN apt-get update && apt-get install -y --no-install-recommends         unzip curl ca-certificates py  11.8s
 => [3/7] RUN curl -fsSL -o /tmp/ndk.zip       "https://dl.google.com/android/repository/android-ndk-r27c-linux.  83.1s
 => [4/7] WORKDIR /src                                                                                             0.7s
 => [5/7] COPY . /src                                                                                              0.4s
 => ERROR [6/7] RUN sed -i 's/\r$//' /src/scripts/*.sh  && chmod +x /src/scripts/*.sh                              0.2s
------
 > [6/7] RUN sed -i 's/\r$//' /src/scripts/*.sh  && chmod +x /src/scripts/*.sh:
0.225 sed: can't read /src/scripts/*.sh: No such file or directory
------
Dockerfile.aot:49
--------------------
  48 |     # host checked the files out.
  49 | >>> RUN sed -i 's/\r$//' /src/scripts/*.sh \
  50 | >>>  && chmod +x /src/scripts/*.sh
  51 |
--------------------
ERROR: failed to build: failed to solve: process "/bin/sh -c sed -i 's/\\r$//' /src/scripts/*.sh  && chmod +x /src/scripts/*.sh" did not complete successfully: exit code: 2

delson_anr · 2026-08-26T13:06:38+0100

Amazing man!

ChanseyIsTheBest · 2026-08-26T17:27:43+0100

mathew77 said:

@ChanseyIsTheBest
Thank you!.. The first script did good, but second one (Dockerfile.aot) in the end got that error (steps 1 — 5 were completely OK):

Code:

 => [2/7] RUN apt-get update && apt-get install -y --no-install-recommends         unzip curl ca-certificates py  11.8s
 => [3/7] RUN curl -fsSL -o /tmp/ndk.zip       "https://dl.google.com/android/repository/android-ndk-r27c-linux.  83.1s
 => [4/7] WORKDIR /src                                                                                             0.7s
 => [5/7] COPY . /src                                                                                              0.4s
 => ERROR [6/7] RUN sed -i 's/\r$//' /src/scripts/*.sh  && chmod +x /src/scripts/*.sh                              0.2s
------
 > [6/7] RUN sed -i 's/\r$//' /src/scripts/*.sh  && chmod +x /src/scripts/*.sh:
0.225 sed: can't read /src/scripts/*.sh: No such file or directory
------
Dockerfile.aot:49
--------------------
  48 |     # host checked the files out.
  49 | >>> RUN sed -i 's/\r$//' /src/scripts/*.sh \
  50 | >>>  && chmod +x /src/scripts/*.sh
  51 |
--------------------
ERROR: failed to build: failed to solve: process "/bin/sh -c sed -i 's/\\r$//' /src/scripts/*.sh  && chmod +x /src/scripts/*.sh" did not complete successfully: exit code: 2

Download the whole repo now I added missing stuff, really sorry about this.
Edit: added more missing stuff

Post automatically merged: Yesterday at 8:00 PM

ChanseyIsTheBest said:
Download the whole repo now I added missing stuff, really sorry about this.
Edit: added more missing stuff

@mathew77 please let me know if you get it working

lvlv · 2026-08-26T20:05:24+0100

I cannot download the APK from his repository, so I’m unable to extract the .so files. Version 0.2 crashes on launch. I have compiled the .so file myself, and its size is around 140 MB.

mathew77 · 2026-08-26T20:57:02+0100

@ChanseyIsTheBest
All the compiler stages were clear, then textures got converted into ASTC successfully, but.. This error comes:

«The software was closed because an error occured»

Build log is OK:

Code:

Build succeeded with 97 warning(s) in 288.0s
  ILC output: /src/aot/bin/Release/net9.0/linux-bionic-arm64/publish/sts2_aot_root.so

== verifying output
file      : /out/libsts2.so
size      : 108,716,432 bytes
arch      : aarch64
type      : shared object
LOAD span : 125.9 MB   (wrapper DOTNET_SO_SLICE must exceed this)
mapped    : 103.7 MB of file, 0.0 MB debug/symbols
NEEDED    : libdl.so, libz.so, liblog.so, libm.so, libc.so
exports   : 8 defined dynamic symbols

  OK  godotsharp_game_main_init
  --  godotsharp_editor_main_init
  --  godotsharp_dllimport_resolver


RESULT: usable

Logfile /switch/sls2_nx/boot_stats.txt here:

Code:

build Aug 26 2026 14:40:39
   1225 ms  modules loaded + init arrays
   1232 ms  GodotLib.initialize
   1234 ms  main pack: FOUND
   1978 ms  GodotLib.setup (project+drivers)

Any advice?..

ChanseyIsTheBest · 2026-08-26T23:22:58+0100

mathew77 said:

@ChanseyIsTheBest
All the compiler stages were clear, then textures got converted into ASTC successfully, but.. This error comes:

«The software was closed because an error occured»
View attachment 587862

Build log is OK:

Code:

Build succeeded with 97 warning(s) in 288.0s
  ILC output: /src/aot/bin/Release/net9.0/linux-bionic-arm64/publish/sts2_aot_root.so

== verifying output
file      : /out/libsts2.so
size      : 108,716,432 bytes
arch      : aarch64
type      : shared object
LOAD span : 125.9 MB   (wrapper DOTNET_SO_SLICE must exceed this)
mapped    : 103.7 MB of file, 0.0 MB debug/symbols
NEEDED    : libdl.so, libz.so, liblog.so, libm.so, libc.so
exports   : 8 defined dynamic symbols

  OK  godotsharp_game_main_init
  --  godotsharp_editor_main_init
  --  godotsharp_dllimport_resolver


RESULT: usable

Logfile /switch/sls2_nx/boot_stats.txt here:

Code:

build Aug 26 2026 14:40:39
   1225 ms  modules loaded + init arrays
   1232 ms  GodotLib.initialize
   1234 ms  main pack: FOUND
   1978 ms  GodotLib.setup (project+drivers)

Any advice?..

Could you send me the layout of files on your SD card?

lvlv · 2026-08-27T03:17:44+0100

There is no latest APK available. The game keeps crashing. Now that I’ve updated the .so files, do I need to delete the save data and re‑convert?

mathew77 · 2026-08-27T06:30:22+0100

ChanseyIsTheBest said:
Could you send me the layout of files on your SD card?

Take a look please, attached to this post.

Also found another logfile /switch/sls2_nx/save/logs/godot.log

Code:

Godot Engine v4.5.1.stable.mono.custom_build - https://godotengine.org
Vulkan 1.3.354 - Forward Mobile - Using Device #0: NVIDIA - NVIDIA Tegra X1 (GM20B) (NVK GM20B)

ERROR: Can't open dynamic library: libmonosgen-2.0.so. Error: .
   at: open_dynamic_library (platform/android/os_android.cpp:245)

lvlv · 2026-08-27T07:37:31+0100

It loads properly now, but there are still many bugs. Switching languages sometimes causes the game to freeze, and many entries in the language menu show up as xx .

ChanseyIsTheBest · 2026-08-27T07:41:45+0100

lvlv said:
It loads properly now, but there are still many bugs. Switching languages sometimes causes the game to freeze, and many entries in the language menu show up as xx .

The languages may display like that on the list but they should work, Sorry about that. What bugs are you experiencing otherwise.

lvlv · 2026-08-27T07:53:43+0100

There is no audio, and the game is heavily stuttering. A diagonal line appears on the in‑game UI. The A and B buttons are reversed. The opening cutscene also has rendering issues, and screen flickering occurs occasionally.

ChanseyIsTheBest said:
The languages may display like that on the list but they should work, Sorry about that. What bugs are you experiencing otherwise.

tiansh888 · 2026-08-27T08:03:00+0100

https://github.com/ModinMobileSTS/Sts2MobileLauncher/releases/tag/v0.1.9

Post automatically merged: Today at 8:04 AM

Hey developer, I think this Android build version 0.19 should offer better usability.

Post automatically merged: Today at 8:06 AM

I hope this version will be useful for your porting work

ChanseyIsTheBest · 2026-08-27T08:18:25+0100

tiansh888 said:
https://github.com/ModinMobileSTS/Sts2MobileLauncher/releases/tag/v0.1.9

Post automatically merged: Today at 8:04 AM

Hey developer, I think this Android build version 0.19 should offer better usability.

Post automatically merged: Today at 8:06 AM

I hope this version will be useful for your porting work

I don't plan on rebasing to another version yet at least.

Post automatically merged: Today at 2:27 PM

OK for next version
- Fix title screen rendering (I think I know what it is not 100%)
- Enable touch screen support
- Investigate mysterious audio glitch and fix it that I can't trigger
- Make AOT compilation instructions consistent between users

Homebrew Homebrew game Slay the Spire 2 - Switch Port

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