Screencheat is a multiplayer first-person shooter video game, in which every player's character model is invisible. However, each player is shown the viewpoints of their opponent and must use this feature to deduce their opponent's location. The maps are brightly colored in order to make it easier to figure out where a player is.

Screencheat includes several different gamemodes. Some, including Deathmatch, King of the Hill, and Capture the Flag, are multiplayer FPS standards. The game also has some unique gamemodes, such as One Shot, where you can only reload after your opponent shoots, and Murder Mystery in which you have to kill a specific opponent with a specific weapon.