MTA:SA

Factorio-like tower defense game. Build production chains to gather more resources, and build complex facilities.

Ad-less chess server powering lichess.org, with official iOS and Android client apps.

Voxel game engine (formerly Minetest). Play one of our many games, mod a game to your liking, make your own game, or play on a multiplayer server.

Transport tycoon simulation game.

Minimalist text adventure game for your browser.

The Battle for Wesnoth is an Open Source, turn-based tactical strategy game with a high fantasy theme, featuring both singleplayer and online/hotseat multiplayer combat.