Hello, We don't know yet if this prologue will be in the full game or stay as a separate game. But the events and the story of the prologue takes place before those of the main game.
Hi! Thank you for your comment! The co-op mode is only available on Steam because the game uses the Steam network protocol to handle the servers, so only the single player mode is available on itch.io. However, the prologue is also available for free on Steam, so don't hesitate to check it out!
