Eresys

Co-op horror where cultists use lamplight to keep monsters away

Ares Dragonis · Published by Dragonis Games · Released Dec 18, 2023

Reviews: Mixed; 59% of 362
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 1 year ago; Jan 9, 2025
Minimum PC: GTX 1060; 8 GB RAM · 15 GB disk; Full requirements

What is Eresys?

Eresys is a Lovecraft-inspired horror game for up to four players online or one player offline. On a secluded island, you search forests, buildings, and caves for missing book pages, collect blood for altar offerings, and perform a ritual to close a portal opened by an expelled cultist.

For you if...

+you enjoy coordinating with friends to complete shared objectives
+you like stealth that rewards keeping noise down

Not for you if...

−you prefer direct combat to searching and avoiding enemies

What players say

59% of 362 reviews are positive

Players praise the atmosphere and creature designs. Complaints focus on lengthy item hunts, limited overall content, and a lack of recent updates.

Screenshots and trailer

Eresys system requirements

Minimum: GTX 1060, 8 GB RAM, 15 GB of disk space.

As published by the developer.

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Minimum

OS: 64-bit Windows 7
Processor: intel core i5 4400 / AMD Ryzen 5 1600
Graphics: Nvidia GTX 1060 3GB
Memory: 8 GB RAM
Storage: 15 GB available space

Does Eresys have co-op or multiplayer?

Yes: co-op online and LAN. It also has a single-player mode.

Does Eresys run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Default controller config not fully functional
Some text entry requires manually opening the on-screen keyboard
Some in-game text is small and may be hard to read
Shows Steam Deck controller icons
Default graphics settings perform well on Steam Deck
External controllers are not supported for the primary player

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 20
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English. Text only: Spanish - Spain, German, Simplified Chinese, French, Japanese, Italian, Greek, Korean, Portuguese - Brazil, Hungarian.

Does Eresys 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 27, 2026. How to filter AI games on Steam