Ghost Trap: Underworld
John Ghost is back with a vengeance in this retro-metroidvania. Fall to the underworld, and explore. Seek to calm the horrors below to ensure a peaceful rest for your loved ones.
Last Updated: 6/13/2026
| Developer | WilhelmGStudios |
| Publisher | WilhelmGStudios |
| Steam App Id | 4736820 |
About Ghost Trap: Underworld
Ghost Trap: Underworld is an Indie, Adventure, and Action game developed by WilhelmGStudios. It was released on the Steam Store by WilhelmGStudios.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Ghost Trap: Underworld supports the following features:
- Family Sharing
- Single-player
- Custom Volume Controls
- Full controller support
- Stereo Sound
- Camera Comfort
- Keyboard Only Option
Media & Sceenshots
Watch the featured video for Ghost Trap: Underworld and see the latest screenshots from the Steam Store.

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Frequently Asked Questions
Soures & References
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Ghost Trap: Underworld data has been sourced from:
- Valve Corporation. (2026, June 13). Ghost Trap: Underworld on Steam. Steam Store.
- Valve Corporation. (2026, June 13). Ghost Trap: Underworld. Steam Community Hub.