DUBIUM

Survival· Funny· Social Deduction· Space

Early access since Jun 2023

DUBIUM is a survival deception game set in a near future sci-fi environment. Five Frontiers must work together to complete different missions to escape before it’s too late. But beware, one of the Frontiers is a Traitor whose goal is to escape and leave the others to fall into the abyss.

65% positive · 336 reviews

Not yet

Still in early access

High confidence

Not yet

Still in early access

High confidence

Where to buy

Steam

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Evaluation

DUBIUM launched into Early Access on June 14, 2023, as a multiplayer survival deception game. The studio, MUMO STUDIO, transitioned the game to free-to-play in October 2023 in an effort to grow the player base, and continued releasing patches through early 2024. However, on April 11, 2024, the developer posted an official closure notice stating that MUMO STUDIO was facing severe financial difficulties and could no longer afford server maintenance costs. The post announced that DUBIUM would officially end its service on April 30, 2024. There have been no developer communications since that notice. The game currently has no purchase options available on Steam, confirming it has been removed from the storefront. DUBIUM is no longer accessible for new players to acquire.

Evidence

The game has no purchase options available, confirming it has been removed from the Steam storefront.

store metadata · Jul 22, 2026 source development ending

high

MUMO STUDIO posted an official closure notice stating the studio faces severe financial difficulties and cannot afford server maintenance. DUBIUM service was announced to conclude on April 30, 2024.

news post · Apr 11, 2024 source development ending

high

Media

Details

Developer

MUMO STUDIO

Publisher

MUMO STUDIO

Achievements

—

Platform

Windows

Controller

—

Steam Deck

Unsupported

Players

Multiplayer · Co-op · PvP

About this game

Five brave Frontiers hired by the notorious Space Frontier company head off to an unstable space station at an unofficial request from Shadd Enterprise. They need to destruct four Energy Cubes and stop the space station from exploding by any means necessary. Little do they know, there is a Traitor amidst them. Secretly working for an antagonist group called Blamane who are hostile toward Shadd’s plans, the Traitor will stop at nothing to seize the mysterious Keystones scattered throughout the doomed station..
- from DUBIUM lore

Survive In Space

Survive In Space An incident from an undisclosed terrorist attack has damaged the space station and it is now an unstable area filled with danger. You must restore life support systems, collect oxygen canisters to breathe, repair solar power generators as quickly as possible, and escape before the space station explodes.

You are a Frontier

You are a Frontier Your mission is to search the space station and destruct all the Energy Cubes left over from the restricted space station. During your expedition, you’ll come across valuable Keystones. Don’t forget to collect them, as they have great value and can make you rich!

You are the Traitor

As a Traitor, you secretly work for the Shadd's biggest antagonist group, Blamane, on a mission to collect 10 Keystones and escape before the Frontiers notice you aren’t on their side. The other players are nothing more than mere tools for the success of your mission. Act like an innocent Frontier to gain their trust, then approach them at the right moment to take them down and steal their precious Keystones. Be stealthy or bold – the choice is yours.

Escape from the Space Station

Dying means you get to keep nothing. You must come out alive with Keystones to become rich. In the best-case scenario, you may collaborate on the mission and escape as a team. However, a solo escape is always an option when things are looking grim… Your own survival is the top priority after all.

Trust No One

One of you is bound to be the Traitor. Even after the Traitor dies, there’s always a chance of a fellow Frontier being bought over by Blamane and becoming the new Traitor. Watch your back and trust no one. Trust No One