Chronostorm Adventure 2.5 is a 2008 action-adventure game developed by Chronostorm Studios and published by Sega and released for TSC Powerbox 3, Sony PlayStation 3 and Xbox 360 and later ported to HT-AOS, TS-UGOS, TSC Scalelace and PC platforms in 2009. The prequel to Chronostorm Adventure 3 video game.

Community content is available under CC-BY-SA unless otherwise noted.