The Key Of Avalon 2.5: War of the Key

The Key of Avalon 2.5: War of the Key (known in Japan as Avalon no Kagi Ver. 2.5: Kagi Seisen) is a unique, hybrid digital collectible card RPG and board game released by Sega and Hitmaker in August 2005. Running on the custom Nintendo/Sega/Namco Triforce arcade hardware, it served as the final competitive update to the The Key of Avalon 2 series.

The game combined the tactical element of sugoroku-style board games (similar to Culdcept or Monopoly) with strategic trading card battles.