Team up with three other knights and defeat enemies, collect loot, and solve puzzles.
More Info @ PCGamingWiki
Spiral Knights is a free to play Action/RPG that only requires a browser and JAVA.
Cradle is a hostile planet teeming with all manners of alien creatures. Any hope of survival you may have rests on your ability to amass an arsenal of weapons and gear that will provide you with the right options for any environment. As a Spiral Knight you have total freedom to customize and use your arsenal however you choose!
Once some kind of mining outpost, Haven serves as the makeshift base camp for Spiral HQ. From within the safety of its walls, knights can find an array of goods and services offered by the locals. Everything from purchasing new weapons and gear to alchemizing powerful items from strange materials is right at your fingertips!
Stretching deep below Haven, The Clockworks is a giant subterranean complex filled with pieces of strange worlds, dangerous creatures and fabulous treasure. Will you and your fellow knights answer its call to adventure?