PC (Microsoft Windows)February 29, 2012
Released ✓ 
RELEASES · DEALS · SUBSCRIPTIONS
Spiral Knights: Operation Crimson Hammer
Challenge Warmaster Seerus and claim his mighty weapons for your own in this all-new Expansion Mission Pack!
ActionAdventureShooter
Game modes
Co-operativeMassively Multiplayer Online (MMO)MultiplayerSingle player
Player perspectives
Bird view / Isometric