While official Single Player Tarkov (SPT-AKI) does not support co-op, external mods like Project Fika and Stay In Tarkov (SIT) enable cooperative multiplayer. Project Fika acts as a plugin allowing hosted, quest-compatible raids, while SIT offers a server-based approach to connect players. For more details on the most prominent option, visit Project Fika Wiki . Modded Tarkov Is Best in Co-Op