A
- Ace of Spades (video game) is a free voxel based FPS by Ben Aksoy for Jagex Group.
- Ahriman's Prophecy is a prequel to the Aveyond RPG series.
- Alien Swarm is a free top down shooter from Valve used to test the Source 2010 beta.
- America's Army is the official United States Army game.
- Anchorhead is a horror interactive fiction game.
- ADOM is a roguelike game (technically postcardware) by Thomas Biskup.
- Armored Brigade is a freeware tactical wargame, focusing on realism and playability.
- Assault Cube is a Counter Strike-like first person shooter with low system requirements.
- Astro battle is a top down Multi-directional shooter in which players design their own spacecraft and battle other players on-line.
Read more about this topic: List Of Freeware Video Games