Moonlight Mansion

Co-op puzzle horror about escaping a mansion with a partner

Monocarpic Game · Published by UQAT - Création et nouveaux médias · Released Mar 16, 2020

Reviews: Mixed; 63% of 57
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 2 years ago; Nov 27, 2023
Minimum PC: GTX 970; 8 GB RAM · 5 GB disk; Full requirements

What is Moonlight Mansion?

This first-person, split-screen puzzle game follows Margarette and her son Henry as they seek an escape from the Victorian-inspired Duval mansion while trying to recover their memories. You explore rooms, gather clues, and solve puzzles together. It is a student project that remains in beta.

For you if...

+you like story-driven exploration in dark, haunted settings

Not for you if...

−you want to play solo instead of relying on a partner

What players say

63% of 57 reviews are positive

Players praise the co-op experience for a quick session with a friend, though some find it too short. Recurring complaints include both players controlling the same character and a lack of settings.

Screenshots and trailer

Moonlight Mansion system requirements

Minimum: GTX 970, 8 GB RAM, 5 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7
Processor: Intel Core i5 / AMD Ryzen 5
Graphics: GTX 970
Memory: 8 GB RAM
Storage: 5 GB available space
DirectX: Version 11

Does Moonlight Mansion have co-op or multiplayer?

Yes: co-op split-screen. There is no single-player mode. With Remote Play Together, one copy is enough to play the local modes online with friends.

Does Moonlight Mansion run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Steam features: Family Sharing
Languages: Full audio: English.

Does Moonlight Mansion use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 28, 2026. How to filter AI games on Steam