Square Enix's mystery game is browser-based Crystal Conquest

The fantasy game teased by Square Enix recently is called Crystal Conquest, the company revealed today. It's a browser game for the Japanese Yahoo! Games service, which seems to combine real-time strategy and action.

Two teams of 20 players, trying to defeat one another using summoned creatures and special abilities in a side-scrolling brawler-type environment. Players can assign those skills from decks of cards they've assembled before going into battle.

Square Enix will hold an alpha test for the game from April 12 through April 16, for which it's taking email signups through April 9. The game will be available to all (in Japan) this summer.