2D shooter/RTS with fully destructible terrain

Mahjong Solitaire

Respond to endless questions

Place crowns in a logic puzzle

Taigo is a virtual pet for your desktop

Shisen-Sho Mahjongg-like Tile Game

Open source chess GUI for chess engines

A fast paced match-4 puzzler

Find the Wikipedia article

2D space shooting game with gravity

fheroes2 is a recreation of the Heroes of Might and Magic II game engine

Tron-like Game

A modernized source port of Hexen II

Save Bugdom from Thorax's evil Fire Ants

"Five in a row" board game

Classic pinball game from late 90s.

A fast paced action game where you shoot down as many targets as possible

Billiards: round table, square balls

Satisfying monster shooter

A simple constructor game suitable for children and adults alike

Make lines of the same color to win

Dhewm 3 is a Doom 3 GPL source port

A game of lonely space adventure

Save your friends from the ghosts!

The Open Racing Car Simulator

Karaoke for your PC

Defeat autocreated huge battleships

Spaceship bridge simulator

Tetris-style falling blocks puzzle with with a story

Turn-based strategy game