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DYSMANTLE: Underworld

Belongs to DYSMANTLE

before 4 years

Developer
10Tons
Publisher
10tons Ltd.
Genre
Action, Action-RPG, Adventure, RPG
Game modes
Couch-Koop, Koop, Singleplayer
Game series
DYSMANTLE
Steam user reviews
64 % positive · 138 reviews
At Steam
View store page
On this page 15 sections

What is DYSMANTLE: Underworld?

DYSMANTLE: Underworld is a paid expansion to the post-apocalyptic action RPG DYSMANTLE. It leads into a separate underground game world with new enemies, equipment and tasks. The additional abilities also help when exploring the original island.

The base game is required. Underworld is not a standalone remake and does not replace the main story.

Updated 09.11.2026

Sources

Release

before 4 years

Underworld first released on PC via Steam on Aug 24, 2022. The console versions and the expansion for mobile versions of DYSMANTLE followed in November 2022. Each release concerns the add-on pack for the main game, which has already been released.

  1. PC

    Released on Aug 24, 2022.

    Source
  2. PS4, PS5, Xbox One, Xbox Series, Switch, iOS, Android

    Released in November 2022.

    Source

Updated 09.11.2026

Sources

Platforms

Underworld is available for Windows PC, PlayStation 4, PlayStation 5, Xbox One, Xbox Series X|S, Nintendo Switch, iOS and Android. On mobile devices, the add-on content is offered within the main game.

A Nintendo Switch 2 version does not become a standalone release through the backward compatibility of the Switch version. The PC version also needs a matching installation of DYSMANTLE.

Updated 09.11.2026

Sources

Gameplay

The expansion moves part of the exploration from the surface into a new, extensive underworld. Branching paths, hostile creatures, old buildings and mysterious facilities lead to additional quests.

The familiar mix of combat, gathering and crafting remains. Some unlocked tools can also be used outside the Underworld afterwards.

Updated 09.11.2026

Sources
Character runs through a rocky gorge in the Underworld of DYSMANTLE.
· 10tons Ltd. Image source

Trailer

DLC and expansions

Belongs to DYSMANTLE

Underworld adds an additional map, new tasks and enemies, plus recipes, skills and building options. The DLC thus expands exploration as well as equipment and base building.

If you want to explore more regions afterwards, Doomsday and Pets & Dungeons are two separate expansions for DYSMANTLE. These are not part of Underworld.

Updated 09.11.2026

Sources

System requirements

The Windows version requires a 64-bit processor, a graphics card with Shader Model 3.0 or higher, and DirectX 11. For the DLC files, Steam lists 768 MB of free storage. The main game DYSMANTLE must also be installed.

The current Steam client supports Windows 10 and newer. The older Windows versions in the original product description are therefore no indication of current Steam support.

The details apply to Windows-PC.

Minimum

Operating system
Windows 10 or newer (Steam)
Processor
64-bit processor
Graphics
Shader Model 3.0 or higher
DirectX
Version 11
Storage space
768 MB for the add-on

Editorial details

Updated 09.11.2026

Sources

How Underworld begins

The additional content unlocks after your character passes the gate from the first area of the main game. At the next rest at a campfire, a new main quest appears that opens the way into the Underworld.

A completely new save game is not needed for this. The DLC inserts the quest into your existing progress.

Updated 09.11.2026

Sources
A character takes apart furniture inside a house by the water.
· 10tons Ltd. Image source

Ivory Mountain and the past

In the Underworld, the events of the 1930s and the mysterious Ivory Mountain Company take center stage. Abandoned facilities and new tasks provide clues about the history of this place.

The expansion combines the additional environment with its own puzzle and quest line, rather than just offering new combat arenas.

Updated 09.11.2026

Sources

New weapons and enemies

With the crossbow and a sawn-off shotgun, Underworld expands the arsenal with new ranged weapons. Unknown creatures also wait, creating combat situations different from those on the main island.

New recipes and skills add to equipment crafting. The pinstripe suit is also among the additional clothing items.

Updated 09.11.2026

Sources
Glowing blue creature in front of a character in an alien underground landscape.
· 10tons Ltd. Image source

Fast travel and farming

Underworld unlocks fast travel between campfires. This cuts down on long walks back when exploring and gathering materials.

The Mana seed bag makes it easier to manage larger planting areas. Both new features are not limited to a single underground quest.

Updated 09.11.2026

Sources
Character fishing by a river near blue crystals.
· 10tons Ltd. Image source

Play together

The PC version supports local split-screen co-op. Steam Remote Play Together can also share this local play over the internet.

Underworld uses the multiplayer features of the main game. As a result, the DLC has no separate online server mode.

Updated 09.11.2026

Sources

Language and controls

On Steam, interface and subtitles are available in German, English, French, Spanish, Italian and Japanese, among others. English voice-over is listed.

The PC version supports controllers. Language and input options may differ between stores.

Updated 09.11.2026

Sources

More from 10Tons

Game series

The Finnish studio 10tons developed and published Underworld. The expansion belongs to DYSMANTLE, whose game world revolves around taking apart objects, resources and lasting progress.

10tons later also released the expansions Doomsday and Pets & Dungeons. With DYSPLACED, the studio developed another survival adventure with its own fantasy game world.

More from DYSMANTLE

Updated 09.11.2026

Sources
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