Twitch shooter multi-player indie games - what are they? Thread

We have released the beta for our online multi-player shooter game: Square Heroes.

Which got me wondering what other indie games there are out there like it? (Sometimes the quickest way to explain to people what your game is like is by comparing to another - although it is never usually just like that other).

I guess Soldat comes time, what else?

Square Heroes is like Soldat (fast paced twitch shooter) meets Worms (cartoon comic art style) I guess..