Revenge Of The Cats: Ethernet is a free experimental online multiplayer FPS with unique gameplay: Alternate between the pure energy "ether form" and the physical manifestation called "CAT". Capture territory and defeat enemies using a multitude of weapons, grenades, and target-seeking discs that can be deflected and steered around corners. Thanks to the territory capturing and the fact that you can only change into CAT form on friendly territory, this game is much deeper than your usual abstract shooter.
This review may contain spoilers
very unique fps, it a bit hard to get into it but once you found out how it works it's pretty fun