The Mound Omen of Cthulhu

The Mound: Omen of Cthulhu PC is a first-person cooperative horror adventure built around jungle expeditions, treasure hunting, and reality-warping Lovecraftian threats. The current Steam and Epic Games Store name remains The Mound: Omen of Cthulhu; no verified rebrand, renamed definitive edition, or replacement storefront title has been identified.

Developed by Chilean studio ACE Team and published by Nacon, the game draws loose inspiration from H. P. Lovecraft's novella The Mound without presenting itself as a direct adaptation. Its strongest identity comes from combining a squad-based expedition loop with psychological horror that can make players question what they are seeing and hearing.

Expeditions, extraction, and first-person survival

Each outing begins aboard the expedition ship Tempestad, where players prepare weapons and equipment before entering the cursed jungle. The objective is not simply to eliminate every creature. Teams search for valuables, clues, lost expedition material, and routes leading deeper toward the mysterious underground world known as the Mound.

The further a group pushes into an expedition, the more attractive the potential rewards become, but danger rises with every decision to continue. Players must judge when to explore another area and when to return with what they have already secured. That risk-and-reward extraction loop gives the game a different rhythm from a linear horror campaign.

Combat combines firearms and close-range weapons, but ammunition and positioning matter more than constant aggression. A team that treats every encounter as a shooting gallery can quickly create more noise, attract additional threats, and lose the advantage of careful movement. Players who enjoy methodical co-op horror with a stronger expedition structure may also appreciate round-based cooperative horror shooters such as Sker Ritual, although The Mound places greater emphasis on exploration and uncertainty.

Madness as a multiplayer system

The defining mechanic is the game's madness and perception system. Supernatural forces do not merely attack the explorers directly; they interfere with how the jungle, creatures, objects, and even teammates appear. A player may encounter something that another member of the group cannot see, creating doubt at exactly the moment when clear communication is most important.

This makes voice communication part of the horror design rather than a simple convenience. A teammate may report an enemy, a path, or a changing environmental detail that sounds impossible from another player's perspective. The squad has to compare observations, decide which information is reliable, and avoid allowing confusion to split the group.

The result is a form of co-op psychological horror based on mistrust and verification. The game is not only asking whether the team can survive a monster attack. It is asking whether the players can agree on what is real long enough to finish the expedition and escape.

Weapons, equipment, and the galleon hub

Preparation is handled from the ship rather than through a traditional character-class system. Players select equipment for the next journey, choose how to approach the jungle, and decide which risks are worth taking before leaving the relative safety of the galleon.

The available gear reflects the setting. Blades, oil lamps, flintlock muskets, and matchlock muskets fit the historical expedition theme while keeping combat grounded in limited technology. The equipment model supports different approaches to danger, but the game is not presented as a conventional hero shooter with rigid roles or elaborate skill trees.

Progression is tied to successful expeditions, discovered information, recovered valuables, and the gradual ability to push farther into hostile territory. The central mastery loop is learning how to read the environment, coordinate with a group, and extract before an ambitious run collapses.

Content model and available editions

The Mound: Omen of Cthulhu is a paid PC game rather than a free-to-play title. Current storefronts present the base game separately from optional content and a Deluxe Edition that bundles additional extras.

The named add-ons include the Fortune Hunters Characters Pack, which adds two playable characters, the Lost Explorers' Swords Pack, the Abyssal Gear Pack, and the Temple of Yig Exclusive Mission. The Deluxe package also includes the digital soundtrack. The character and gear items are primarily about expanding the expedition roster or changing presentation, while the Temple of Yig content adds a separate mission area and contract.

Players looking for a self-contained story-driven Lovecraftian game should note that The Mound's content model is built around repeatable expeditions and continued mastery rather than a single uninterrupted campaign. For a more authored first-person cosmic-horror structure, science-fiction investigation games like Moons of Madness offer a much more linear alternative.

Who should play it?

The best audience is a group of players who enjoy online co-op horror for up to four people, environmental uncertainty, limited resources, and communication-heavy encounters. The game has a clear hook for friends who want horror that generates arguments, false alarms, and improvised plans instead of relying only on scripted jump scares.

It also suits players who like extraction-style decisions but want something more atmospheric than a conventional shooter. Treasure collection, route planning, equipment choices, and the decision to retreat all matter because the expedition becomes more dangerous as the group advances.

Solo play is officially supported, but the game's most distinctive ideas are designed around shared observation and conflicting perceptions. Players who want a purely solitary horror campaign, deep character builds, competitive multiplayer, or local split-screen co-op should approach it cautiously. The Mound is fundamentally a cooperative online experience with a supported single-player option.

PC features, storefronts, and localization

The PC version is available through Steam and the Epic Games Store. Steam lists single-player, online co-op, Steam Cloud, achievements, trading cards, Family Sharing, and full controller support. Epic lists the game through its own launcher and account ecosystem.

Current technical metadata identifies Unreal Engine and Epic Online Services technology. No separate PC anti-cheat product is identified in the available storefront metadata, and there is no competitive mode that would make anti-cheat a central part of the experience. Steam remains the more clearly documented option for controller and platform-integration features.

English is supported for interface, subtitles, and full audio. The PC storefront language list also includes French, Italian, German, Spanish, Japanese, Polish, Brazilian Portuguese, Russian, Simplified Chinese, and Korean for interface and subtitle support. English is the verified full-audio language.

Similar PC games for different kinds of horror players

The Mound occupies a specific space between cooperative survival horror, first-person action, and extraction-style exploration. It is not a conventional horde shooter, and it is not a detective adventure built around dialogue choices.

Players who want Lovecraftian investigation, open-ended exploration, and a heavier detective angle can compare it with open-world cosmic-horror investigations such as The Sinking City. That game prioritizes cases and clue interpretation, while The Mound prioritizes squad coordination, expedition risk, and perception-based threats.

Players who prefer cooperative combat will find some overlap with Sker Ritual, but the two games have different priorities. Sker Ritual is built around repeatable rounds and escalating enemy pressure. The Mound is more concerned with navigation, treasure, extraction decisions, and whether the team can trust its own senses.

The Mound: Omen of Cthulhu FAQ

Is The Mound: Omen of Cthulhu the current PC storefront name?

Yes. Steam and the Epic Games Store currently list the game as The Mound: Omen of Cthulhu. No verified official rebrand or renamed PC edition replaces that title.

Is The Mound: Omen of Cthulhu a co-op game?

Yes. The game supports online cooperative play for up to four players. Single-player is also available, but the madness system is most distinctive when teammates can compare different perceptions of the same expedition.

What is the main gameplay loop?

Players prepare equipment aboard the Tempestad, enter the cursed jungle, accept or pursue expedition objectives, search for treasure and clues, manage rising danger, and decide when to extract. Progress comes from learning routes, handling threats, and surviving increasingly ambitious expeditions.

Does the game have local or split-screen co-op?

Current official storefront descriptions confirm online co-op and single-player support. They do not advertise local split-screen multiplayer, so PC players should plan around online sessions.

What does the Deluxe Edition add?

The Deluxe package bundles the base game with the Fortune Hunters Characters Pack, digital soundtrack, Lost Explorers' Swords Pack, Temple of Yig Exclusive Mission, and Abyssal Gear Pack. The Temple of Yig content is the named mission-focused addition, while the other packs primarily expand characters, cosmetics, or equipment appearances.

Which languages are supported on PC?

English, French, Italian, German, Spanish, Japanese, Polish, Brazilian Portuguese, Russian, Simplified Chinese, and Korean are listed for interface and subtitles. English is listed for full audio.