The Mound: Omen of Cthulhu launches tomorrow, July 15, bringing ACE Team's co-op expedition horror game to PC, PlayStation 5 and Xbox Series X|S.
Nacon's official game page lists ACE Team as the studio, Nacon as publisher and July 15, 2026 as the release date. The page also puts the game at $29.99 for the standard PC edition, with a $39.99 Deluxe Edition that adds character, gear, soundtrack and mission content.
The sharper hook is not the Lovecraft name by itself. The Mound is a first-person co-op horror game where the jungle attacks the squad's confidence in what it sees and hears. Nacon and ACE Team are pitching it as an expedition into a cursed place, but the useful player read is more specific: this is a game about checking with your friends before you trust your own screen.
A treasure run where voice chat becomes part of the horror
The Steam page describes The Mound as a co-op expedition game for up to four players, with a solo option also listed on Nacon's site. Players prepare on a galleon, choose weapons and equipment, sign contracts, then head into the jungle looking for riches buried somewhere near the legendary Mound.
That gives the horror a practical loop. The squad is not simply walking down corridors until a monster appears. It is taking jobs, deciding how much gear to risk, splitting supplies and trying to bring treasure back alive. Steam also lists abandoned forts and logbooks that can unlock new starting points, which suggests progress comes from learning the jungle rather than only surviving one clean run.
The madness system is where The Mound gets its own identity. Nacon's page says Lovecraftian threats distort perception, blur reality and illusion, and sow paranoia inside the group. An Xbox Wire post goes further, saying the game avoids a visible sanity meter and instead changes what individual players perceive. It gives examples such as hallucinated sounds, altered environments and teammates appearing as monsters under psychological pressure.
That is a strong fit for co-op horror because it makes communication more than chatter. Spatialized voice chat is listed on Steam as part of the coordination layer, and the design only works if players are constantly asking each other whether the sound, shape or movement ahead is real. The game is at its most interesting when the monster is not the only danger. A scared teammate with bad information can be just as damaging.
ACE Team is a good match for strange horror
ACE Team's history matters here because The Mound needs more than tentacles and darkness. The Chilean studio has spent years making games with unusual bodies, odd spaces and physical rules that feel slightly wrong.
Zeno Clash was a first-person brawler in a punk fantasy world, and its Steam page notes an Independent Games Festival Excellence in Visual Art finalist nod. Rock of Ages turned history and tower defense into a boulder-rolling competitive game. The studio later pushed further into surreal survival with The Eternal Cylinder, where players guided a herd of mutable creatures across an alien world.
None of that guarantees The Mound will land. Co-op horror is unforgiving, especially when a game asks four people to balance fear, objectives and readable systems at the same time. But ACE Team has rarely been interesting because it follows genre defaults. Its best work tends to come from making a familiar action idea feel physically peculiar, which is exactly what a perception-bending horror expedition needs.
Where it sits in a busy July 15 lineup
July 15 has a surprisingly varied release slate. Our new games worth watching this week preview also flagged Denshattack, Cozy Grove: Camp Spirit and several smaller PC releases around the same date. Denshattack has the brighter arcade pitch, while Cozy Grove is aimed at a softer daily-life audience after its earlier Netflix Games mobile release.
The Mound is going after a different night entirely. It is for groups that want an objective-driven horror game, not just a haunted house tour, and for players who like co-op games where trust can collapse under pressure. Lethal Company and Phasmophobia helped prove how much horror can gain from voice chat, panic and imperfect information. The Mound's Conquistador-era jungle setting gives that shared fear a more directed expedition shape.
PC players also get a small technology note. Nacon's NVIDIA blog post says The Mound launches with DLSS 4.5 support for GeForce RTX 50 Series GPUs, including Dynamic Multi Frame Generation and Super Resolution with the second-generation transformer mode.
The confirmed launch is tomorrow on PC, PlayStation 5 and Xbox Series X|S. If The Mound works, the best stories from it may not be about the creature that killed the squad. They may be about the moment everyone argued over whether the creature was really there.