Project Octavia combines stylized third-person action with innovative stealth gameplay, set in a noir alternate-history Cold War universe. Players can engage in infiltration, gunplay, and hand-to-hand combat while utilizing gadget crafting to enhance their strategies. The game emphasizes teamwork and tactics, allowing players to form dynamic teams of various sizes, from duos to larger groups, to achieve objectives and outsmart opponents. With a focus on player choice, the game caters to different play styles, whether opting for stealth or direct confrontation.

The multiplayer experience introduces a variety of modes, including a unique 'social solos' mode and the option for PvP and PvE co-op gameplay. Matches can accommodate up to eight players in solo mode or feature teams of trios and duos, offering flexibility and replayability. With a 20-minute match duration, players can expect fast-paced action that requires quick thinking and adaptability, making every encounter unpredictable and exciting.