Co-Op Features in the PC Version
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Core Features

Local Co-Op
Not Supported
Online Co-Op
6 Players
Combo Co-Op (Local + Online)
Not Supported
LAN Play or System Link
Not Supported

Co-Op Extras

  • Downloadable Only
  • Co-Op Specific Content

The Co-Op Experience

Team up and fight with your friends in an intense online horde mode! Battle waves of enemies and unlock achievements as you and your friends test your skills against not just Dinosaurs but Special Forces as well. Also included is COOP Missions mode, where you and your friends can play objective-based missions together.


At its core, Fossilfuel is a survival horror game. The player is trapped in a massive underground facility, Sierra, located in a remote location in Alaska. The player must use their head to find clues and solve puzzles to escape the facility.

The game features several massive maps that the player can play in any way they want. Their decisions will decide the ending of the game. Once the player escapes the depths of Sierra, they are faced with the sprawling landscape that is, the Great Sitkin Island.

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This page contains co-op info for Fossilfuel on the PC. All information about Fossilfuel was correct at the time of posting. Information is subject to change. If you see any errors please email us.