Make the game work on Linux with Steam integration

[romlok]

This adds a small script, and the love, libluajit.so, and luasteam.so binaries (64-bit) to get the game working under Linux, with the Steam integration intact (achievements, at least).

I wasn't really sure where to put the files I added, so feel free to rearrange or reimplement as appropriate!

I copied the included love and libluajit binaries from the ones installed from the Debian package repos (eg. https://packages.debian.org/bullseye/amd64/love).
The luasteam.so binary was downloaded from https://github.com/uspgamedev/luasteam/releases

Note that we also require libsteam_api.so. As I understand it, this library is not freely redistributable, so it is not included in the PR. For personal use, I used a copy from one of my other 64-bit Steam games.

Steps to get this working:

1. Clone this branch into, eg. /src/SNKRX
2. Rebase onto a327ex:SNKRX if necessary (the game will likely be updated more recently than this branch/PR)
3. Copy libsteam_api.so from a 64-bit Steam game you already have installed, into /src/SNKRX/engine/love/linux/
4. Run ./run-linux.sh

or

4. "Add a game" -> "Add a Non-Steam Game" in the Steam client; "Browse" to and select the /src/SNKRX/run-linux.sh script (you may have to change the "File type" in the dialog).
5. Run the new blank-icon SNKRX from your library, rather than the official SNKRX.

Either way, achievements and time spent should be logged against the official SNKRX.

While this gives us Linux users a workaround, I would very much like to see this fantastic game available for Linux directly on Steam, so I hope this helps! 🐧

[SolitudeSF]

I don't know what will happen if you don't own the game on Steam

it won't launch (as expected)

[mac-chaffee]

I ended up having to run sudo apt-get install libluajit-5.1-2 in addition to the steps you described, but after that, it's working!

[romlok]

I ended up having to run sudo apt-get install libluajit-5.1-2 in addition to the steps you described, but after that, it's working!

Thanks! I didn't notice that one because it had already been installed on my system as a dependency of obs-studio. I've added Debian's version of libluajit-5.1-2.so to the repo as well. 👍

[JustinMBrown]

FYI, run-linux.sh also requested a bunch of shared libraries other than libsteam_api.so. I was able to install them one by one, but then I ran into this:

./linux/love: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by ./linux/love)

./linux/love: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by ./linux/love)

I have 2.27 on ubuntu 18.04.5

[SolitudeSF]

stop using lts distros on desktop.

love needs to be built against steam runtime or statically linked.

[JustinMBrown]

stop using lts distros on desktop

I'm not sure what you mean. Also, are there any plans to make the game available on linux through steam?

[romlok]

stop using lts distros on desktop

I'm not sure what you mean. Also, are there any plans to make the game available on linux through steam?

From the context, I believe they mean that one should rely as little as possible on system libraries, and distribute (or statically compile in) necessary versions of all required libraries (that aren't in the Steam runtime).

I don't have experience with packaging games for Steam, so I don't really know what versions of what need to be included, only what worked for me. It seems the versions of the libraries I included were compiled against glibc 2.29 (released 2019), so will only work with newer distros.

AFAIK the dev hasn't said anything about an official Linux Steam release, and as much as I'd like to see it, I wouldn't expect it to be a priority for them unless they were personally interested in the Linux platform itself, since Linux gamers can play the game today, either via Proton or this workaround.

[JustinMBrown]

via Proton

That worked, thanks!

[Kogol1]

Will this work also for mac os m1 ?

[romlok]

Will this work also for mac os m1 ?

You may be able to follow a similar process to get it to work on Mac, but I'm not familiar with MacOS, so I don't know how easy it would be to find the necessary libraries compiled for the new Apple silicon.