My friends and I just finished a big push on our Facebook game - Vorp! It's still in 'open-alpha' and we could really use all the feedback we can get. It uses the Unity engine and is a top-down 'MOBA' (Multiplayer Online Battle Arena) shooter. So far, we've got 4 wildly different ships, a single-player survival mode and a multiplayer deathmatch mode. We finished our first pass on a achievements and there is a WIP tutorial for first-time players (in single-player).

Game: http://apps.facebook.com/vorpgame/
Game Site (info, player stats, etc): http://vorp.endgames.net/

Some screenies:



Some pilots:

Forgot to mention, the game is Free! We really just need player feedback - even if you hate it, we'd still love to hear from you.