A fresh gameplay overview for The Mound: Omen of Cthulhu has landed ahead of the game's July 15, 2026 launch, and it makes the cursed jungle look every bit as lethal as the name implies.
The Mound: Omen of Cthulhu is a four-player cooperative survival horror game set in a cursed 16th-century South American jungle. Developer ACE Team - the studio behind Clash: Artifacts of Chaos and the Zeno Clash series - is taking on a new genre with the title, published by NACON.
What the Overview Reveals
Surviving the dense environments requires careful audio management and strict trigger discipline - the jungle is highly reactive to player presence, meaning every snapped branch or fired musket risks awakening the horrors lurking nearby.
The game is "inspired by the stories of H.P. Lovecraft with their oppressive and unpredictable atmospheres," with supernatural forces that "don't just hunt you down: they distort your perception of every situation to throw you off balance." That psychological pressure turns cooperative play into a liability - survival depends on communication and helping each other, but as madness sets in, hallucinations intensify, and one poor decision or misplaced shot can turn the whole mission into a disaster.
The Expedition Loop
Expeditions begin on the galleon, where players sign contracts and distribute gear before rowing to the mainland. ACE Team and NACON describe it as "a purely co-operative gameplay experience" in which Conquistador-era explorers "must survive horror and madness" on an expedition into the heart of a deep jungle.
Inventory is described as "limited," and weaponry emphasises defence and avoiding conflict rather than pursuing direct combat. Players utilise proximity voice chat and flintlock weapons as they face cosmic horrors in the 16th-century setting.
Players must follow environmental clues and old accounts to eventually locate the titular Mound, and securing the riches within requires a balance of cautious exploration and decisive action when confronted by supernatural threats.
Key Features at a Glance
| Feature | Detail |
|---|---|
| Players | 2-4 co-op |
| Perspective | First-person |
| Setting | 16th-century South American jungle |
| Voice comms | Proximity chat |
| Weapons | Flintlock-era, defence-focused |
| Cross-platform | Yes |
Steam Next Fest Demo
A free playable demo for The Mound: Omen of Cthulhu will be available during Steam Next Fest from June 15 to June 22, 2026. That gives PC players a low-risk opportunity to test whether their nerves - and their friendships - can survive the jungle before committing to a purchase.
Release and Platforms
The game launches on July 15, 2026, across PC, PlayStation 5, and Xbox Series X|S with full cross-platform support. It was originally announced on March 6, 2025, with a late-2025 release window before being moved to 2026.
Buy The Mound: Omen of Cthulhu
Live deal tracker
The Mound: Omen of Cthulhu is available to pre-order now - pick it up for AU$55.83 via the price comparison table above.
ACE Team has built its reputation on unconventional, atmosphere-heavy action games, and The Mound looks like a sharp pivot into a genre that suits that sensibility well. If the demo lands well during Steam Next Fest this week, July 15 could be a very good day for co-op horror fans.
