C
- Cave Story is a side-scrolling action-adventure game.
- Cellfactor: Revolution is a single-player and multiplayer game that uses the Ageia Physx engine.
- Chex Quest is a comedic Doom clone (technically an advergame).
- Chicken Invaders is a space shooter by InterAction Studios.
- Chzo Mythos is a set of four separate adventure games: 5 Days a Stranger, 7 Days a Skeptic, Trilby's Notes and 6 Days a Sacrifice by Ben Croshaw.
- Cloud is a third-person computer puzzle game based on weather and atmospheric aesthetics.
- Continuum is a Top-Down video game Multiplayer game.
Read more about this topic: List Of Freeware Video Games