You are a survivor of a reckless experiment leaving you and countless others stranded on a faraway planet that nobody knows about. Held captive by an unknown entity, you are sent into the decaying ruins of what once was a safe place to complete whatever task it needs.

Try to reach the end of a massive 100 mission long campaign with limited lives, escalating difficulty, and uncertainty if freedom awaits you at the end.
Collect new weapons, tools, and upgrades as you work your way through the campaign. Your starting equipment alone wont be enough to save you from what awaits you down below...

You are in this together. Play with up to 3 others as you constantly find yourself on the verge of death. All it takes is one wrong move. Strategy and coordination is required to complete the objective. Each team member needs to tailor their equipment to fulfill a specific job. Balancing the team is essential to maximize efficiency, and minimize casualties. 

Take anything you can find with you. Your loadout will constantly change as you find yourself trading your weapons and tools for equal or better ones throughout a mission. Any gear or resources found during a mission can then be extracted, and brought back with you on later missions. Items will remain in whatever state you leave it in when you extract it, meaning that expending all the ammo on a gun and extracting it just leaves you with an empty gun.

The threats roaming the halls of The Monolith are hungry for blood. All it takes is one wrong move to go from tense stealth to frantic combat. Use every tool at your disposal to overcome impossible odds, from big guns, turrets, explosives, and more.