Project Eden is a 3D shooter with an emphasis on puzzle-solving. The player takes control of four UPA agents: Carter Dorlan, Andre Herderman, Minoko Molensky, and Amber Torrelson. Each of the protagonists has his or her own special ability, which must be frequently used to solve puzzles and advance in the game. Carter can interview suspects and open locked doors, Andre uses a special Omnitool to repair broken equipment or machinery, Minoko can hack into computer terminals, accessing information and controlling cannons, robots, tanks, and other machines, Amber can shoot pulse laser bolts and missiles, and is unaffected by hazards such as flames, poison gas, electricity, cold temperatures, etc.