Xoldiers is a short level based shooter (complete with a level editor) for Windows
Xoldiers is a short level based shooter by me and Cactus. The X stands for explosions*! (*no it doesn’t)
[Edit] We’ve updated the game! The new version includes a level editor, and, get this, an online level database accessible inside the game! Our simple approach comes with an upload limit so only small/medium size levels can be uploaded, but still, neat, huh? This version also includes in-game highscores, as well as some minor bug fixes.
http://distractionware.com/blog/2008/11/x-o-l-d-i-e-r-s/