OpenCity, another 3D city simulator. OpenCity is cross platform and open source. Download it now for free.

Simutrans is a freeware and open-source transportation simulator.

A sandbox tower-defense game.

An open source simulator based on the classic game Transport Tycoon Deluxe. It attempts to mimic the original game as closely as possible while extending it with new features.

Set in a futuristic cartoonish world, Warsow is a completely free fast-paced first-person shooter (FPS) for Windows, Linux and macOS.

A freedom-oriented classless MMORPG, in a Science Fantasy setting focused on Roleplay, Live Events, complex crafting and dynamic environments.

OpenRCT2 is the open-source adaption of the classic hit RollerCoaster Tycoon 2. Including online multiplayer, fast-forwarding and numerous bug fixes.

Official homepage of Cataclysm: Dark Days Ahead open source turn-based survival RPG development project. Hosts downloads of game and links to community sites...

Free multiplayer sandbox block game

DREDGE is a single-player fishing adventure with a sinister undercurrent. Sell your catch, upgrade your boat, and dredge the depths for secrets.

At DEEP ROCK GALACTIC,  we always need new talented dwarven miners to join us on our glorious endeavor!

Clone Hero is a cross platform classic instrument based rhythm game!

Play Endurya for FREE - A huge MMORPG web game. No downloads, join our community. 1st RPG online game

OpenRW is a free, open source re-implementation of the Grand Theft Auto III PC video game.

A Minecraft launcher with several features and simple/beautiful UI. (WIP) - GitHub - DuckyHQ0/HQLauncher: A Minecraft launcher with several features and simple/beautiful UI. (WIP)

EmuVR - Virtual Emulation

A game where you collect monsters that are based on emotions.