The SEGA America Blog announces Spiral Knights, a free-to-play online multiplayer game in development at Three Rings (Puzzle Pirates). They offer an announcement trailer, and the Spiral Knights Website is live. Here's a bit:

A spirit of fun, adventure, and mystery oozes from every inch of this game. Take control of your own spiral knight and guide them — alone or in a group — down into the Clockworks, a mysterious and ever-changing labyrinth of dungeons. You’ll be able to acquire and upgrade your gear through adventuring or through the purchase of Crystal Energy, and doing battle within the Clockworks.

We’re very excited to help bring you this game, and not the least because Three Rings is such a singular and creative development team. Spiral Knights already feels like one of “those games” — something that does its own thing and makes it feel effortless. The world of Spiral Knights is easy to jump into but goes miles deep, and we’re very excited to get a chance to share this new and exciting adventure with you.