“Deepolis” is a browser-based, 3D MMO where players control submarines in a dystopian future. Three factions fight for supremacy under the seas, and it's up to players to decide which one will come out on top.

The MMO is very open-ended, and like Bigpoint's other games is heavily influenced by open world PVP (player versus player combat). "Deepolis" features fully 3D controls, allowing you to move your submarine in any direction (including rising and diving) as you explore the seas and battle both NPCs and enemy players.