Playnite

Playnite

License: MIT License


Description:

Playnite is an open source video game library manager that unifies games from multiple sources (Steam, Epic, GOG, Origin, Battle.net, and more) with emulation support, extensibility, themes, and offline local library data.

Prefixer


Prefixer

License: GPL-3.0


Description:

Prefixer is a CLI tool for rapidly managing Steam Proton prefixes without remembering IDs. It uses fuzzy name matching, writes tweaks in a JSON5 format, and offers built-in Steam support for fast, modular tweaks.

gamescope

gamescope

License: BSD 2-Clause License


Description:

Gamescope is Valve’s SteamOS session window manager (a micro-compositor formerly steamcompmgr). It composes game frames via Wayland/Xwayland, can flip frames directly via DRM/KMS, and uses async Vulkan compute when composing. It runs on desktop environments and supports virtual screens and exotic display setups.

MaSzyna Train Simulator

MaSzyna Train Simulator

License: MPL 2.0


Description:

MaSzyna Train Simulator is a free, community-developed railroading simulator for Windows and Linux. It offers dozens of routes, trains, and scenarios, letting players drive locomotives and operate passenger and freight cars. The project includes OpenGL-based rendering, OpenAL audio, and assets under a custom license, with source under MPL 2.0.

ChaosEsqueAnthology

ChaosEsqueAnthology

License: Creative Commons Attribution License, GNU General Public License version 2.0 (GPLv2), GNU General Public License version 3.0 (GPLv3)


Description:

ChaosEsqueAnthology is a free 3D game for PC offering open-ended play with buildable interiors, exploration, and combat. It features a large weapon set and an extensible engine with community-driven content, all under open-source licenses.