The Mound: Omen of Cthulhu Wiki

Co-op Lovecraftian horror guide

Prepare your expedition, manage sanity, coordinate with your crew, and learn what the cursed jungle can twist before it devours the team.

Up to 4-player co-opReleased July 15, 2026PC, PS5, Xbox Series X|S

Start Here

Start Your Expedition

1

Learn the Loop

Understand contracts, exploration, loot extraction, and the return to the galleon.

2

Manage Sanity

Watch for hallucinations, false audio cues, and teammate perception shifts.

3

Coordinate Gear

Split muskets, lamps, knives, and support roles before entering the jungle.

4

Know Platforms

Check PC, PS5, and Xbox availability, editions, prices, and co-op expectations.

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What is The Mound: Omen of Cthulhu?

The Mound: Omen of Cthulhu is a co-op horror adventure from ACE Team and Nacon. Players form an expedition of treasure seekers entering a cursed jungle where reality shifts and survival depends on trust.

Its defining threat is the madness system. The game can alter what each player sees and hears, turning teammates, terrain, and escape signals into dangerous uncertainties.

The expedition structure mixes preparation aboard a galleon, contracts, abandoned forts, scarce resources, and high-risk extraction runs in search of the legendary Mound.

Explore All Guides

Developer

ACE Team

Publisher

Nacon

Release

July 15, 2026

Platforms

PC, PS5, Xbox Series X|S

Mode

Solo and online co-op

Genre

Action adventure horror

The Mound: Omen of Cthulhu Wiki Navigation

Jump into the core sections covering survival basics, sanity, co-op, platforms, editions, demo questions, price checks, and troubleshooting.

The Mound: Omen of Cthulhu Beginner Guide

Learn the expedition loop before entering the cursed jungle. This module covers contracts, treasure recovery, extraction pressure, and the basic habits that keep a squad alive.

PrepareChoose gear aboard the galleon before accepting a contract.
ExploreMove as a crew, recover loot, and unlock useful expedition points.
ExtractReturn with treasure before sanity and the jungle overwhelm the team.
Read Full Guide

The Mound: Omen of Cthulhu Sanity

The sanity system changes what players see and hear. Use this module to recognize false audio cues, hallucinated enemies, altered teammate models, and other perception traps.

VisualThe jungle and teammate silhouettes can become unreliable.
AudioSafe-sounding horns or calls may be hallucinations.
Team CheckAsk the squad to confirm anything suspicious before reacting.
Read Full Guide

The Mound: Omen of Cthulhu Co-op

Co-op communication is the player's reality check. This module helps groups divide roles, confirm sightings, avoid friendly fire, and support teammates under psychological pressure.

Essential Tier

Voice communication and callouts

Important Tier

Role and gear assignment

Situational Tier

Solo practice and cautious scouting

Read Full Guide

The Mound: Omen of Cthulhu Demo

Track demo questions, trailer evidence, and early gameplay expectations before you commit to a full expedition.

DemoCheck whether a demo is currently available on your platform.
TrailerUse official launch footage to set expectations.
GameplayReview co-op survival, sanity pressure, and extraction flow.
Read Full Guide

The Mound: Omen of Cthulhu Platforms

The game is verified for Windows PC, PlayStation 5, and Xbox Series X|S. This module gathers store links, release details, and feature notes for players choosing a platform.

PCSteam release from ACE Team and Nacon.
PS5PlayStation Store Standard and Deluxe editions.
XboxXbox Wire and Microsoft Store launch coverage.
Read Full Guide

The Mound: Omen of Cthulhu Editions

Compare Standard and Deluxe edition content before buying. The Deluxe edition references Abyssal Gear, Fortune Hunters Characters, and the Temple of Yig mission.

Standard Tier

Base game access.

Deluxe Tier

Base game plus mission, character, and gear packs.

Pre-order Tier

Lost Explorers' Swords Pack referenced by Xbox Wire.

Read Full Guide

The Mound: Omen of Cthulhu Price

Compare price intent across Steam, PS5, and Xbox pages before choosing a platform or edition.

SteamCheck the PC store page for regional pricing.
PS5Compare Standard and Deluxe listings.
XboxConfirm console availability and launch coverage.
Read Full Guide

The Mound: Omen of Cthulhu Troubleshooting

Track common player questions around black screens, fatal errors, requirements, controller support, and comfort settings using verified platform data and launch evidence.

CheckConfirm platform, controller, and subtitle support from store data.
UpdateWatch official channels for patches and known issue posts.
ReportUse official community links when a reproducible issue remains.
Read Full Guide

The Mound: Omen of Cthulhu FAQ

Quick answers based on verified store, launch, and platform evidence.

Keep Your Crew Grounded

Use the wiki to compare mechanics, plan your route, and avoid mistaking hallucination for reality.