Repositories list

• GameNetworkingSockets

  Public
  Reliable & unreliable messages over UDP. Robust message fragmentation & reassembly. P2P networking / NAT traversal. Encryption.

  networkingpeer-to-peergame-development+ 2

  networkingpeer-to-peergame-developmentrealtime-messagingreliable-messages

  C++

  •

  BSD 3-Clause "New" or "Revised" License

  •710710 forks•9.6k9.6k stars•3838 issues•22 pull requests•Updated May 3, 2026May 3, 2026

• Proton

  Public
  Compatibility tool for Steam Play based on Wine and additional components

  proton

  proton

  C++

  •

  Other

  •1.4k1.4k forks•31k31k stars•5k5k issues•4141 pull requests•Updated May 3, 2026May 3, 2026

• wine

  Public
  Wine with a bit of extra spice

  C

  •

  Other

  •380380 forks•1.9k1.9k stars•2222 issues•3333 pull requests•Updated May 3, 2026May 3, 2026

• dxvk

  Public
  dxvk tree containing branches used by Proton

  C++

  •

  zlib License

  •3737 forks•464464 stars•00 issues•00 pull requests•Updated May 3, 2026May 3, 2026

• gamescope

  Public
  SteamOS session compositing window manager

  C++

  •

  Other

  •404404 forks•4.7k4.7k stars•799799 issues•9494 pull requests•Updated Apr 30, 2026Apr 30, 2026

• Unity

  Public
  C#

  •

  BSD 3-Clause "New" or "Revised" License

  •00 forks•5252 stars•11 issue•00 pull requests•Updated Apr 27, 2026Apr 27, 2026

• steam-devices

  Public
  List of devices Steam and SteamVR will want read/write permissions on, to help downstream distributions create udev rules/etc

  linuxsteam

  linuxsteam

  MIT License

  •5555 forks•214214 stars•1212 issues•22 pull requests•Updated Apr 16, 2026Apr 16, 2026

• counter-strike_regional_standings

  Public
  JavaScript

  •5353 forks•302302 stars•2020 issues•1212 pull requests•Updated Apr 6, 2026Apr 6, 2026

• source-sdk-2013

  Public
  The 2013 edition of the Source SDK

  C++

  •

  Other

  •2.9k2.9k forks•9.8k9.8k stars•370370 issues•624624 pull requests•Updated Mar 30, 2026Mar 30, 2026

• openvr

  Public
  OpenVR SDK

  sdkhardwarevr+ 3

  sdkhardwarevrsteamvrsteamvr-pluginopenvr-sdk

  C++

  •

  BSD 3-Clause "New" or "Revised" License

  •1.3k1.3k forks•6.6k6.6k stars•1k1k issues•4444 pull requests•Updated Mar 27, 2026Mar 27, 2026

• steam-audio

  Public
  Steam Audio

  vrspatial-audiosteam-audio

  vrspatial-audiosteam-audio

  C++

  •

  Apache License 2.0

  •224224 forks•2.8k2.8k stars•9191 issues•1515 pull requests•Updated Mar 25, 2026Mar 25, 2026

• Fossilize

  Public
  A serialization format for various persistent Vulkan object types.

  C++

  •

  MIT License

  •6868 forks•749749 stars•3434 issues•11 pull request•Updated Feb 26, 2026Feb 26, 2026

• counter-strike_rules_and_regs

  Public
  CS:GO

  7373 forks•616616 stars•00 issues•1313 pull requests•Updated Dec 8, 2025Dec 8, 2025

• SteamOS

  Public
  SteamOS community tracker

  steamos

  steamos

  7777 forks•2.3k2.3k stars•1.2k1.2k issues•11 pull request•Updated Nov 21, 2025Nov 21, 2025

• steamvr_unity_plugin

  Public
  SteamVR Unity Plugin - Documentation at: https://valvesoftware.github.io/steamvr_unity_plugin/

  vrsteamvr-plugin

  vrsteamvr-plugin

  C#

  •

  BSD 3-Clause "New" or "Revised" License

  •262262 forks•1.1k1.1k stars•333333 issues•1313 pull requests•Updated Nov 21, 2025Nov 21, 2025

• unity-xr-plugin

  Public
  OpenVR plugin for Unity's XR API

  C#

  •

  BSD 3-Clause "New" or "Revised" License

  •6565 forks•332332 stars•6363 issues•99 pull requests•Updated Oct 29, 2025Oct 29, 2025

• steam-runtime

  Public
  A runtime environment for Steam applications

  Shell

  •

  Other

  •9090 forks•1.4k1.4k stars•167167 issues•33 pull requests•Updated Sep 30, 2025Sep 30, 2025

• Dota2-Gameplay

  Public
  Public Bug Tracker for Dota 2

  100100 forks•1.6k1.6k stars•12k12k issues•11 pull request•Updated May 23, 2025May 23, 2025

• steam-for-linux

  Public
  Issue tracking for the Steam for Linux beta client

  linuxsteam

  linuxsteam

  186186 forks•4.7k4.7k stars•3.6k3.6k issues•55 pull requests•Updated Apr 24, 2025Apr 24, 2025

• steamlink-sdk

  Public
  C

  •107107 forks•540540 stars•99 issues•11 pull request•Updated Mar 17, 2025Mar 17, 2025

• vkd3d

  Public
  C

  •

  GNU Lesser General Public License v2.1

  •1515 forks•215215 stars•11 issue•00 pull requests•Updated Nov 21, 2024Nov 21, 2024

• halflife

  Public
  Half-Life 1 engine based games

  C++

  •

  Other

  •688688 forks•4.3k4.3k stars•2.1k2.1k issues•5252 pull requests•Updated Oct 2, 2024Oct 2, 2024

• Source-1-Games

  Public
  Source 1 based games such as TF2 and Counter-Strike: Source

  tf2source-engineteam-fortress+ 2

  tf2source-engineteam-fortresssource-engine-gamessource-games

  8080 forks•766766 stars•4.4k4.4k issues•99 pull requests•Updated Jun 24, 2024Jun 24, 2024

• SteamVR-for-Linux

  Public
  Issue tracker for the Linux port of SteamVR

  linuxvrsteamvr

  linuxvrsteamvr

  5050 forks•1k1k stars•420420 issues•22 pull requests•Updated May 7, 2024May 7, 2024

• csgo-osx-linux

  Public
  Counter-Strike: Global Offensive

  counter-strikecounter-strike-global-offensive

  counter-strikecounter-strike-global-offensive

  6868 forks•836836 stars•1.9k1.9k issues•22 pull requests•Updated Apr 22, 2024Apr 22, 2024

• portal2

  Public
  Issues for the Linux port of Portal 2

  99 forks•156156 stars•242242 issues•11 pull request•Updated Apr 22, 2024Apr 22, 2024

• steamvr_unreal_plugin

  Public
  SteamVR Input Unreal Plugin - Documentation at: https://github.com/ValveSoftware/steamvr_unreal_plugin/wiki Sample project (UE4.15-4.23): https://githu…

  C++

  •

  Other

  •2929 forks•185185 stars•2121 issues•00 pull requests•Updated Mar 8, 2024Mar 8, 2024

• Dota-2-Vulkan

  Public
  Tracker for issues specific to the Vulkan version of Dota 2 on Windows, Linux, and macOS

  vulkandota-2

  vulkandota-2

  1111 forks•104104 stars•165165 issues•22 pull requests•Updated Dec 4, 2023Dec 4, 2023

• Dota-2

  Public
  Tracker for issues specific to Linux and Mac in the Reborn client. If you have a general issue or non-system-specific feature request please go to dev.dota2.com

  macoslinuxdota-2

  macoslinuxdota-2

  3636 forks•497497 stars•665665 issues•00 pull requests•Updated Dec 4, 2023Dec 4, 2023

• steamos-compositor

  Public
  SteamOS session compositing window manager

  C

  •404404 forks•166166 stars•33 issues•11 pull request•Updated Oct 16, 2023Oct 16, 2023