The Mound: Omen of Cthulhu
by ACE Team · 15 Jul, 2026
341 downloads
About the Game
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.
Screenshots
5 images
Version Information
Steam Patch Notes
Official update history
[img src="{STEAM_CLAN_IMAGE}/45528915/cbc811b0ea9f225426869d837e8ab2f8f3425ba5.png"]
Thank you for playing The Mound: Omen of Cthulhu. This first update since the demo brings new content, a significant wave of community-driven improvements, and a preview of what's coming next.
New Features
Weapon Upgrade Anvil - a new station on the main ship lets you spend tokens to improve or upgrade weapons given by contracts.
Hand-drawn art pieces now accompany logbook narrations on the rowboat map.
New guidebook page added at the combat dummy on the ship, covering combat mechanics.
New sanity effect. We're not telling you what it is.
Improvements
Several of these came directly from your feedback: thank you for taking the time to share it.
Community feedback:
Fixed camera smoothing when disabling all camera effects, for 1:1 mouse-to-camera movement
Push to talk added
The mandatory hard cap at the end of missions has been removed: players can now remain on the mainland as long as they can survive
Better diversity of treasure shrines and additional treasure pickups in missions
Language column added to the find games screen
Improved weapon balance for contracts
Accessibility option added: dot at the centre of the screen for motion sickness
FOV slider range expanded from 85–115 to 75–125
Multiple players can now interact with the ox-wagon inventory simultaneously
General:
Single Player: New gestures to command your bot companion to switch between silent weapons and a rifle - more effective but noisier
Prologue ending cinematic extended with additional narration
Contracts now display more mission information and a greater variety of treasure requirements
You can now leave game sessions while spectating
Improved voice 3D spatialization
Improvements to doppelganger behaviour
Multiple sanity effect improvements
Bug Fixes
Various bug and crash fixes
Replication fixes for foliage and other in-game actions
Many visual and screen loading optimisations
What's Coming Next
We're currently working on crossplay:
After looking into it, Crossplay is working fine, but we have indeed identified an issue whereby you cannot invite your friends to play via Crossplay. We are currently working on a fix and will do our best to provide it as soon as possible, making crossplay invitations easier and more reliable.
In the meantime, the available workaround is to find your friends’ server in the online server list. We realise that this method is inconvenient and apologise again for any trouble caused.
Thank you for all your feedback, it helps us better identify and resolve these issues.
We're also working on a block and counterattack system for certain weapons. We want to give players more tools in critical moments without removing the threat that close-range combat should feel like. We're taking our time to get that balance right... with many more fixes and improvements.
There's a lot more to come!
Share your thoughts in the forums or on our Discord - we're listening.
The Mound: Omen of Cthulhu - out now on Steam, PS5 and Xbox Series X|S.
🧭 Join the Galleon
RedditTiktok Twitter Discord[img src="{STEAM_CLAN_IMAGE}/45528915/77e3c95843979a807ebf02c9373b69aa9ad54ac4.gif"]
[img src="{STEAM_CLAN_IMAGE}/45528915/e10b483257242f147a29a07084f8bd31dffe215f.png"]
A new build is live for the Steam Next Fest Demo. Here's what changed.
Improvements & New Features
Weapon looting from corpses - you can now pick up weapons directly from enemy bodies. One less reason to go in empty-handed.
Two new sanity effects added to the rotation. We're not telling you what they are. You'll know.
Guidebook codex pages can now be discovered across the mainland - piece together more of what The Mound doesn't want you to know.
Firearm ammo drops now carry more bullets per pickup, and undead enemies have a slightly higher chance of dropping them.
Additional weapons and ammo placed in select areas.
Appraiser sentiment improved - gear brought back from missions is evaluated more favourably.
Subtitle font size option added to the settings menu.
Several interface visual improvements.
Improved Huemul behaviour.
Bug Fixes
Players can no longer go into token debt.
Fixed a stretching polygons bug in the onboarding area.
Players now crouch in first person when picking up bodies.
Fixed time warnings from the forest state not appearing.
The Map item no longer behaves like the Medallion item.
Multiple minor issues addressed.
Keep the reports coming - the demo is shaping the launch build, and every piece of feedback helps.
The Mound: Omen of Cthulhu launches July 15 on PS5, Xbox Series X|S, and PC.
🧭 Join the Galleon
RedditTiktok Twitter Discord[img src="{STEAM_CLAN_IMAGE}/45528915/77e3c95843979a807ebf02c9373b69aa9ad54ac4.gif"]
Current Release
Build 24958042
Uploaded Sep 01, 2026
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System Requirements
How to Install
TheMound.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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Download The Mound: Omen of Cthulhu for PC with a direct link or via torrent. Get the full version of The Mound: Omen of Cthulhu for free. The Mound: Omen of Cthulhu is a Action released by ACE Team.