Galactic Civilizations IV: Underworld
Descend into the galaxy's criminal underworld. Every civilization has an underworld. Will you suppress it, exploit it, or become it?
| Type | DLC |
| Developer | Stardock Entertainment |
| Publisher | Stardock Entertainment |
| Last Updated | 3/26/2026 |
| Steam App Id | 4130660 |
- Windows
- Mac
- Linux
About Galactic Civilizations IV: Underworld
Galactic Civilizations IV: Underworld is a Strategy and Simulation DLC developed by Stardock Entertainment. It was released on the Steam Store by Stardock Entertainment. Galactic Civilizations IV: Underworld can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this dlc app.
According to Steam’s category system, Galactic Civilizations IV: Underworld supports the following features:
- Downloadable Content
- Family Sharing
- Steam Achievements
- Playable without Timed Input
- Camera Comfort
- Single-player
- Save Anytime
- Online PvP
- Co-op
- Cross-Platform Multiplayer
- Online Co-op
- Custom Volume Controls
- Stereo Sound
- Steam Cloud
- PvP
- Multi-player
- Steam Workshop
- Adjustable Difficulty
- Surround Sound
- Adjustable Text Size
Media & Sceenshots
Explore the featured video and screenshots from Galactic Civilizations IV: Underworld featured in the Steam Store.
DLC & Related Apps
Galactic Civilizations IV: Underworld is referenced by 1 other related app in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Galactic Civilizations IV | Game | 10/19/2023 | View |
Related Packages
Galactic Civilizations IV: Underworld is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| Galactic Civilizations IV - Expansion Pass 2 | $59.99 | View |