The Mound: Omen of Cthulhu - Steam Key
ACE Team
Jul 14th, 2026
3% cashback on this purchase
Description
EMBARK ON A CO-OP EXPEDITION FOR UP TO 4 PLAYERS
In the cursed and hostile jungle, danger lurks around every corner. Lovecraftian horrors warp reality as madness closes in, while you explore ever deeper in search of infinite riches buried within The Mound.
MADNESS SYSTEM AND ALTERED PERCEPTION
Inspired by H.P. Lovecraft‘s oppressive atmospheres, the game features a deep madness system that makes the cursed jungle play with your perception. Unpredictable threats distort your senses, blur the line between reality and illusion, and sow paranoia within your group.
Soon you can no longer trust what you see and what you hear.
AN EXPEDITION INTO THE UNKNOWN
Aboard the galleon, prepare for your next expedition. Sign a contract with the captain to receive gear in exchange for the treasures you bring back, split weapons and equipment among your party, and choose which area of the jungle to explore next. The further you venture, the greater the dangers you will face.
The cursed jungle does not only breed the strangest of creatures. Something is also playing with your mind over there.
IN SEARCH OF THE MOUND
Once on the mainland, you are on your own, relying on spatialized voice chat to coordinate against unpredictable threats and gather what riches you can.
Discover abandoned forts during your expedition and recover their logbooks to unlock them as new starting point for future expeditions.
Venture ever deeper in the cursed jungle in search of The Mound, rumored to hold treasures beyond imagination.
Buy The Mound: Omen of Cthulhu Steam Key
Get instant access to one of the most atmospheric co-op horror experiences of 2026 with a cheap The Mound: Omen of Cthulhu Steam Key from GameBoost. Your key will be available in your GameBoost account dashboard immediately after purchase, ready to activate and download via the Steam client. Every purchase on GameBoost includes 3% cashback in GB Coins and 24/7 live chat support, backed by over 19,000 verified Trustpilot reviews. From new releases to classic titles, GameBoost offers Steam game keys on GameBoost across the full range of PC gaming.
About The Mound: Omen of Cthulhu
Developed by ACE Team, the Chilean studio behind Rock of Ages and Zeno Clash, and published by Nacon, The Mound: Omen of Cthulhu launched on July 15, 2026 for PC, PlayStation 5, and Xbox Series X/S. Set during the 16th century age of the Conquistadors, the game follows a group of explorers who board a galleon, accept contracts from the captain in exchange for gear, and venture onto an uncharted continent in search of a legendary lost city said to hold unimaginable treasure. What begins as an expedition for riches quickly reveals itself as something far more dangerous.
The game's defining feature is its madness system, inspired by H.P. Lovecraft's cosmic horror fiction. As players push deeper into the cursed jungle, supernatural forces begin to distort their perception — sounds become unreliable, visual distortions blur the line between threat and illusion, and paranoia spreads through the group as trust in what you see and hear erodes. This psychological layer sits on top of a tense extraction-style co-op loop where players scavenge for treasure, fight monstrous creatures, and attempt to extract alive before the jungle consumes them. Abandoned forts scattered across the map can be discovered and unlocked as new expedition starting points, gradually expanding the world with each session. Full crossplay between PC, PlayStation 5, and Xbox Series X/S means squads can form across platforms without restriction.
The Mound: Omen of Cthulhu currently holds a Metacritic score of 69, with critics praising its atmosphere, visual design, and the unsettling effectiveness of its madness system.
Region & Activation
This game key is available in multiple regions. Select your region at checkout to see availability and pricing for your country. If you are unsure whether your country is supported, check the activation details on the product page before purchasing.
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System Requirements
Minimum
- Requires a 64-bit processor and operating system
- OS
- Windows 10/11 64-bit
- Processor
- Intel Core i7-8700k or AMD Ryzen 5 1600x
- Memory
- 16 GB RAM
- Graphics
- Nvidia GTX 1660 SUPER 6GB or AMD Radeon RX 5600 XT 6GB or Intel Arc A770 16GB
- DirectX
- Version 12
- Additional Notes
- Please note that these informations aren't final and may be subject to change until the launch of the game.
Recommended
- Requires a 64-bit processor and operating system
- OS
- Windows 10/11 64-bit
- Processor
- Intel Core i7-11700k or AMD Ryzen 5 5500
- Memory
- 16 GB RAM
- Graphics
- Nvidia RTX 3070 8GB or AMD Radeon RX 6750 XT 12GB
- DirectX
- Version 12
- Additional Notes
- Please note that these informations aren't final and may be subject to change until the launch of the game.
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3% cashback on this purchaseThe Mound: Omen of Cthulhu FAQs
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This is a Steam key, a unique digital code that activates The Mound: Omen of Cthulhu on your own existing Steam account. Once activated, the game is permanently added to your library and is yours to keep forever.
This key is available in multiple regions. Select your region at checkout to confirm availability for your country. If you are unsure whether your country is supported, check the activation details on the product page before completing your purchase.
Yes. The Mound: Omen of Cthulhu supports full crossplay between PC, PlayStation 5, and Xbox Series X/S. Players on all three platforms can join the same expedition regardless of which platform they are playing on, with no platform restrictions on who you can play with.
The Mound: Omen of Cthulhu supports both solo and co-op play. Solo players are accompanied by an AI bot companion that can be commanded using in-game gestures. Online co-op supports up to four players simultaneously. The game is designed around co-op teamwork and communication but is fully playable alone for players who prefer to explore the jungle solo.
The Mound: Omen of Cthulhu has not been confirmed for Xbox Game Pass at this time. Purchasing a key is the most straightforward way to access the game, with no subscription required and permanent ownership from day one.
No. The Mound: Omen of Cthulhu works as a standalone co-op horror experience and provides all the context needed to enjoy the game without prior knowledge of the Cthulhu Mythos. Players familiar with H.P. Lovecraft's fiction will recognise the themes, tone, and cosmic horror imagery, but the game is fully accessible to newcomers.
Minimum specs require an Intel Core i7-8700K or AMD Ryzen 5 1600X, 16 GB RAM, an NVIDIA GTX 1660 Super 6GB or AMD Radeon RX 5600 XT 6GB or Intel Arc A770 16GB, DirectX 12, on Windows 10 or 11 (64-bit). Recommended specs call for an Intel Core i7-11700K or AMD Ryzen 5 5500, 16 GB RAM, and an NVIDIA RTX 3070 8GB or AMD Radeon RX 6750 XT 12GB. Note that 16 GB RAM is required even at minimum settings, so lower-spec machines may struggle. System requirements may be subject to change following post-launch updates.