Infiltration

Infiltration was made by Skyline Software and is a classic FPS where the player has to infiltrate the Umbra Corporation to find and steal a mainframe disk and also try to find out what happened to another agent who was sent in before, the game is set over 29 levels but there is only a two level demo available for download, the pages relating to the game have not been updated recently but the author doesn't confirm the game has been shelved, there are plenty of screenshots to suggest there is a lot more of this game than the 2 demo levels.