Good luck and enjoy :)

The team at Sharpened Edge studios have spent years studying the greats: Ikaruga, Raiden, and Radiant Silvergun, and more, to figure out their mechanics, difficulty balance, and challenge. The result of their work is Saviors: the ultimate bullet hell co-op experience.

After aliens conquer earth, you’re humanity’s one last hope for survival. Customize your ship and wage war through 18 huge levels.
Key Features
Survival Mode – one life to live. How far can you go?
Fun and original 2 player co-op game mode. Players have different weapons and roles and need to work together to succeed
Full 3d engine, with real life particle physics and weapon ballistics.
Online leaderboards with downloadable replays
100 different Steam achievements