Invaders: Corruption is a fully procedurally generated arena shooter. That means, after entering a seed-key, every enemy, the appearance of your ship, the arena itself, the gameplay and so forth - will be based on whatever key you entered. Different key, different looking and behaving game. Of course, you can share cool keys with your friends online. Design: The game mixes retro stylings and sounds with todays technology & understanding of arcade action. Glowing pixelated sprites meet today's graphics capabilities. Online HI-Scores and leader-board are available. Compare against your friends and the world's top invader hunters.

AggroNoobs says

10/10 - Agree Disagree

Easily one of the most under rated arena shooters to come out since robotron! This game is nothing short of addictive and just flat out fun. ( Heart breaking at times as well ) Between the seed generator, music, graphics, game play and pure eventual fury this game lets lose on you, it's one of, if not the BEST free indie shooter out there.
Grid Wars and Geometry wars, take note. THIS is how you make a great arena blast fest.