Moonfall: Protocol (AppID: 3973560)

Moonfall Protocol is a fast-paced 1–4 player co-op survival horror game.

You and your friends are given a once-in-a-lifetime chance to walk on the moon. What starts as an exciting mission quickly turns into something worse. A hidden base, with strange astronauts guarding it, and a portal that pulls you into a twisted dimension.

Inside, nothing stays the same.
The world shifts, entities stalk you, and every step feels like a race against time.
Work together to gather evidence of what really happened, coins to upgrade your abilities, and hunt down ten control points to power the generator that could send you home.

Face relentless alien horrors across the surface of the moon and beyond.
Every second counts as you and your team fight, run, and adapt to unpredictable threats in shifting environments.

Your mission isn’t just to survive — it’s to uncover the truth.
Collect critical evidence hidden within the lunar base and strange dimensions, piece it together, and decide when it’s time to escape.

Work together or fall apart. Coordinate with your team to share discoveries, warn of incoming threats, and make sure everyone makes it back alive. Sometimes, silence is just as powerful as shouting.

Earn rewards during your runs to unlock new gear, improve your speed, strength, and awareness, and increase your odds of surviving entities and challenges that come across.