Games X-15-1 System Requirements X-15-1 X-15-1 is a first-person simulator with a dash of flight simulator from Xtreme Prototypes, Inc.. The game is published by Xtreme Prototypes... Read more About the game Buy the game Requirements Gallery Similar games Reviews and ratings Release dates System Requirements X-15-1 The game has been released or is in development for PC, but we do not yet know its system requirements. Bookmark the page and check back later.