Dementium II is the original 2010 Nintendo DS survival horror sequel, restored for PC by the team that made it. William Redmoor wakes at the Bright Dawn Treatment Center with fresh staples in his skull and a record saying he murdered his wife. A postcard in his cell, written in his own handwriting, tells him to run. The hospital keeps tearing open into a demented version of itself.

Steam 250 weekly chart: #14 on the Top 50 Games of the Past Week, up +2 places, scored 7.67 from 146 reviews at 96% positive, released 20 October 2026. Chart position via Steam 250.

Key features

A restoration by the original developers

Atooi is the studio founded by Jools Watsham, who co-founded Renegade Kid, the team behind the original Dementium games on Nintendo DS. That matters because handheld-to-PC ports are usually farmed out: here the people who know which compromises were forced by DS hardware and which were deliberate are the ones deciding what to change.

Flashlight and weapon held at once

The DS originals made you choose between light and firepower, a restriction born of the hardware era it came from. Dementium II lets you hold both, which sounds minor but reshapes every encounter: the tension stops being about fumbling with equipment and becomes about what the light actually finds.

A corridor horror game that predates the current wave

Dementium II was built in 2010, before found-footage and PS1-style horror became the indie default. Playing it now is useful context for anyone who follows modern retro horror, because it shows the design language those games are referencing was a working commercial format rather than a nostalgic affectation.

Where to find it

Dementium II is on Steam for $14.99, developed and published by Atooi. Steam lists content warnings for blood and gore, intense violence and use of drugs. English is the only supported language.

Read more: Is Dementium II a remake? — and why this is not the same as the 2013 PC version developed by Memetic Games.

Frequently asked questions

Is Dementium II on PC a remake or a port?

Atooi describes it as the original Dementium II restored, not a remake. The game is the 2010 Nintendo DS title rebuilt for PC by the team that originally made it, with changes such as being able to hold the flashlight and a weapon at the same time.

How much is Dementium II on Steam?

Dementium II is 14.99 dollars on Steam.

Do I need to play the first Dementium before Dementium II?

Dementium II is a direct sequel to Dementium: The Ward and continues William Redmoor’s story, so the first game gives useful context. The sequel opens with a recap of his situation and is playable on its own.

Who made Dementium II?

Atooi, the studio founded by Jools Watsham, who co-founded Renegade Kid, the developer of the original Dementium games for Nintendo DS. Atooi both developed and published the PC release.

Does Dementium II support controllers?

Yes. Steam lists full controller support, adjustable difficulty and custom volume controls.