Radical Entertainment's 2009 open-world title Prototype offers a fast-paced action experience where players control Alex Mercer, a shapeshifting biological weapon fighting through a viral outbreak in Manhattan. The game emphasizes vertical traversal and combat, allowing for fluid movement across cityscapes and the ability to consume enemies for health and abilities. For a secure, full version, the game can be found on digital platforms such as Steam or for preservation purposes on the Internet Archive . Prototype Wiki | Fandom