Up to four players can work together to survive.
Dive into a thrilling survival adventure where an unknown liquid takes control of your life. Extract Serum to stay alive, battle dangerous creatures, solve puzzles, and uncover clues about past events.
This page contains co-op info for Serum on the PC. All information about Serum was correct at the time of posting. Information is subject to change. If you see any errors please email us.