Cradle of Rome is a game in which you build ancient Rome, the most legendary city of all time. In the game, you must conquer 100 intuitively designed levels by swapping tiles and matching three or more in a row. You can collect supplies and build 5 historical epochs. It lets you reconstruct masterpieces of Roman architecture, build the Coliseum to train gladiators, and even rebuild the Pantheon, the temple of all the Roman gods.
Cryptogram Puzzle Tool helps solve the simple cryptogram puzzles that appear in the daily newspapers. While these puzzles can often be solved almost by inspection, CPT4 provides a handy tool the ones that turn out to be not quite so easy. If you just want a little bookkeeping help, CPT4 will instantly update all occurances of the new assignments as well as provide frequency and used/not-used letter lists as you drag-and-drop or key in suspected solution letters. But if you'd rather have the computer do the work, the automatic solution algorithm will usually come very close to a complete solution in just a few seconds. CPT4 can also create new puzzles from keyed in plaintext or from a file.
Crystal Core is a FPS quest-based game written with Crystal Space and Crystal Entity Layer. The game is based on a science fiction story. The player and his or her companions crash on an alien planet where they discover that the original intelligent inhabitants are now extinct due to an invasion of semi- primitive aliens from a distant planet. Your goal is either to destroy all aliens or escape the planet alive. To accomplish these goals you have to use alien technology and try to interface it with the broken ship that you arrived with.
Cube Trains is a puzzle game where you build elevated railways in a city. It features 3D puzzles, unlimited undo/redo, and smart placement of pieces. The non-linear level graph means you don't have to beat a level before unlocking the next one. The game comes with a built-in level editor, so you can build and share your own corners of the city.