Project Eden is an action-adventure game developed by Core Design and published Eidos Interactive for Microsoft Windows and PlayStation 2.

Players switch between control of four UPA (Urban Protection Agency) agents, each with their own special abilities, as they work their way through a city that has grown upward and upward, leaving delving buildings and neighbourhoods "below city limits". Among other unique mechanics of Project Eden is the fact that player characters do not die; instead, they are respawned at the last checkpoint, where their health is fully restored. With its emphasis on puzzle-solving over combat, the game may be thought of as a cyberpunk updating of The Lost Vikings, as it has more in common with that game developed by Blizzard Entertainment than traditional first- or third-person shooters. A single player can control any of the four characters at any given time, and other players can jump in at any time and assume control of team members.

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