The Mound: Omen of Cthulhu drops a squad of treasure hunters onto a cursed jungle island, then spends the rest of the run making them doubt everything they see. It’s a co-op extraction game built around a simple promise and a nasty twist. Grab the loot the captain wants, drag it back to your galleon, and try to leave before the island stops playing fair.
Quick answer: The Mound: Omen of Cthulhu is a four-player co-op extraction game from ACE Team and Nacon, releasing July 15, 2026, on PC (Steam), PlayStation 5, and Xbox Series X.
Release time: July 15, 2026 at 8:00 AM UTC
What The Mound: Omen of Cthulhu is
You play as one of up to four explorers chasing riches across an uncharted island. Your home base is a fog-soaked galleon where you prepare each run, picking weapons and gear before sailing out to the jungle. The deeper you push, the more dangerous it gets, eventually leading toward a legendary underground world where the biggest treasures are buried.
The Lovecraftian framing isn’t just window dressing. The supernatural here doesn’t only hunt you, it bends how you read every situation. As unholy creatures and unexplained events pile up, the line between what’s real and what’s illusion breaks down, and that paranoia spreads through your group fast.
It’s made by ACE Team in Unreal Engine 5, with art direction that leans into a painterly, high-contrast look instead of photorealism. Strong silhouettes hold their shape in low visibility, which matters a lot once the fog rolls in and you can no longer tell friend from fake.
Release date, platforms, and editions
The game launches July 15, 2026. A Standard Edition with the base game is confirmed across all three platforms, and the PC version is sold as a Steam key.
| Detail | Info |
|---|---|
| Release date | July 15, 2026 (8:00 AM UTC) |
| Platforms | PC (Steam), PlayStation 5, Xbox Series X |
| Players | Up to 4, co-op |
| Developer | ACE Team |
| Publisher | Nacon |
| Engine | Unreal Engine 5 |
| Genre | Action / Adventure, Lovecraftian, Psychological Horror |
You can add it to your library now on the official Steam store page to track the launch.
The extraction loop: collect treasure, survive the jungle
Each mission starts on the ship, where you handle the practical stuff. Weapon lockers, loadout stations, and cooking stations are all built into the galleon itself, not tucked behind clean menus. The cooking stations matter because hunted meat can be turned into upgrades.
On the island, the objective is blunt. Collect treasure up to the value the captain has requested, and you do that by dropping valuables into a cart that follows you everywhere, even mid-fight. If you can, you also bring back meat, water, and resources. Once you start exploring, the shoreline gives way to the jungle, and survival quickly outweighs looting.
The island reacts to you. Noise is the core threat trigger, so hacking through undergrowth, running, talking, and especially shooting all draw enemies. The more racket you make, the more the undead shamble out of the fog. Some treasure aids carry a catch as well. A medallion can help you locate riches, but it comes at a price.
Reality distortion and the red moon
The horror builds in stages. The fog thickens, mist coils through ruined structures left by past expeditions, and sightlines that were clear a moment ago vanish. The ground and its roots take on an unnatural pulsing red, and when the moon turns red, the island fully comes alive and nothing on it can be trusted.
This is where the perception tricks bite hardest. Get separated from your squad in the fog and you may spot silhouettes that resolve into your teammates, except they aren’t. The default character designs read as familiar and safe right up until a voice on comms tells you to run and another insists what you’re looking at isn’t real. The art direction stops being just a mood and becomes a tool to mislead you.
Weapons and combat
Combat runs on a deliberately slow, period-appropriate arsenal. Sixteenth-century weapons set the pace, so confrontations are methodical rather than twitchy. A flintlock rifle hits hard but has a major weakness. Gunpowder gets wet and stops working in the rain, which is a real problem on an island where it pours.
Bows are the rainy-day answer. Arrows are slower to fire but faster to reload, and they’re lethal when you take time to aim. When the undead crowd in and ranged options run dry, you fall back to a knife, and after that, running is a legitimate strategy.
| Weapon | Behavior |
|---|---|
| Flintlock rifle | Strong single shot, but powder fails in the rain |
| Bow and arrow | Slow to fire, fast to reload, deadly with aim |
| Knife | Last-resort melee for close encounters |
Languages and content rating
The game ships with interface support in 11 languages, including English, Italian, German, Spanish, Simplified Chinese, Korean, Japanese, Polish, Brazilian Portuguese, Russian, and French. English is the only language with full audio, while the rest are subtitled. Achievements are supported across all listed languages.
Expect mature content. The game is flagged for frequent violence and gore, with intense blood throughout. PEGI and ESRB ratings are still listed as to be determined.
The pitch is clear enough heading into launch. Bring three friends, keep quiet, grab what the captain asked for, and get off the island before the red moon convinces you that your own squad is the enemy.
