Flight simulator

A 1 vs. 1 fighting game

Spaceship bridge simulator game

A modern port of the original Quake engine

An Infinity Engine Resource Browser and Editor

Deductive Zebra Puzzle Logic Game

A game of matching marbles

Free Train Simulator for everyone

A sliding-puzzle game

Conservative source port

Roguelike RPG, with pixel art graphics and lots of variety and replayability

Blackbox Logic Game

Play as an appliance

Solve puzzles in style

Outsmart the killer robots to win

Viper is a launcher and updater for Northstar, and not much more than that

A faithful and open-source remake of Cave Story's engine written in Rust

Solitaire game compilation

The Free and Fast Arena Shooter

The interactive application to master computer science

Lunar Lander style arcade game

Brick-breaking game with pretty graphics

Epic story-driven FPS running on the Build Engine

KBreakOut is a Breakout-like game by KDE

A free to play, graphical MMORPG

A sand simulation game

A simple Sudoku Sovler

Real-time strategy game

Movie realism first-person-shooter

2D action/rpg space trading combat game