Dementium II Rises on Steam October 20 — The Cult DS Horror Sequel Gets a Real Remaster

You wake up with fresh staples in your skull. The treatment center’s corridors peel back into something worse — something with teeth and too many angles. The flashlight in your hand is shaking. It won’t stop shaking. Sixteen years ago, this whole nightmare fit in your pocket.

Watch the Trailer

Quick Specs

• What: Dementium II — remastered edition of the 2010 Nintendo DS survival-horror FPS
• Who: Atooi, led by Jools Watsham — the original Renegade Kid creator
• When: October 20, 2026 (three days out — just in time for Halloween week)
• Where: PC via Steam, Steam Deck Verified
• The goods: up to 4K or crunchy retro-pixel mode; classic stencil-style or modern flashlight; optional no-enemy-music-warning mode; the DS dual-screen interface rebuilt for one monitor; full controller + mouse and keyboard; Steam Achievements

Here’s the thing about this remaster: it isn’t the first time Dementium II crawled onto PC. Back in 2013, a version called Dementium II HD showed up with zero involvement from the original creators — and it landed buggy, joyless, and permanently stuck at a “Mixed” Steam rating from the players who suffered through it. This is the do-over.

You play William Redmoor, waking up in the Bright Dawn Treatment Center with a new wound and an old accusation — the records say he murdered his wife. A postcard in his cell, in his own handwriting, tells him to run. The hospital keeps tearing open into a demented version of itself, and escaping the building is only the beginning: an empty village and a countryside full of things that shouldn’t exist are waiting outside.

Full disclosure, up front, because that’s how we do things here: nobody outside Atooi has played this remaster yet — it doesn’t unlock until October 20. Everything above comes from the official Steam page and the date announcement (Gematsu broke it). No skull rating until I’ve actually walked those corridors.

Harper’s Extras

Still hungry for horror games? Read our Hellraiser: Revival launch piece, the Fire and Ashes scream-powered horror game story, and the UnderMire co-op descent into the bunker.

Where to Play

Steam, October 20. Wishlist it now — the Doctor doesn’t like to wait.

FAQ

Is this the same as the old Dementium II HD on Steam?

No — and that’s the whole point. This is a new remaster from Atooi, the studio led by the original game’s creator. The 2013 version stays buried.

Do I need to play Dementium: The Ward first?

Nope. The sequel recaps William Redmoor’s story, though horror completionists will want both.

Harper out. Lights out.