Double World is an open world multiplayer game set in a futuristic world where technology has advanced greatly. A device called the Doppelganger has been created to generate servant clones of humans. However, the Doppelgangers have gained sentience and rebelled against their human masters. The player takes on the role of an unnamed hero tasked with finding and destroying the machine that enabled the Doppelganger uprising. Gameplay involves open world exploration, vehicle use, weapon combat, and interactions with both human police forces and rebellious Doppelgangers.