Sepium is a 4-player online co-op, survival horror game. Your crew is tasked to explore various locations in an infested world, flooded with paranormalities and the signs of danger. While investigating and dealing with the weirdness of these places, you should not forget to collect precious loot that will help you to survive slightly longer. 
Accomplish your assignments, fight back the foes, and find out more about the mysteries of this world. And, don't forget - all your steps are recorded, supervised and assessed at the end of your job.

Get ready for deployment into massive levels with your team.
Each level has its own unique atmosphere, hazards and tricks.

You are here to find out what is haunting this world, possibly annihilating the threats along the way. Use different equipment to complete rich variety of tasks, ranging from scanning area for radiation and fighting bosses to summoning demons. And don't forget to look for hints!

Embark with your friends into up to 4 player online co-op, find teammates to play with in a server browser, or dare yourself to beat the game in a singleplayer mode! It is your choice how to form your team.

Prepare for a face-to-face encounter with your worst nightmares.
Local fauna and ambience will never leave you alone. The world is infested with humanoid and non-human threats, willing to give you a hard times, to say the least. Luckily, you can handle them. In a violent way, for sure. And various perilous events are further complicating your journey.

Search for items, collect them into your inventory and use different tactics to make the most of them. Sell the things you don't need and upgrade yourself for better gear.

For those willing to leverage experience to a brand new level, Sepium has to offer several procedurally generated levels, apart from ordinary ones, where each new walkthrough feels uniquely!