How to Win a Free 4-Pack of Keys for The Mound: Omen of Cthulhu

Great news for squad leaders planning to risk their sanity in the abyss: the playable Steam demo for The Mound: Omen of Cthulhu has been extended until next week. Alongside this extension, developer ACE Team and publisher Nacon launched a community clip contest. If you capture the most chaotic, funny, or downright terrifying moment of your squad's survival run, you could walk away with a 4-pack of game keys at launch.

Here is how you can secure those free keys before the game releases on July 15.

How to Enter the Clip Contest

The contest runs until July 5, 2026. The developers are looking for gameplay clips that highlight the chaotic nature of the game—think accidental squad betrayals, sudden panic attacks, or hilarious failures.

To enter, upload your video clip to one of the following platforms:

• Twitter/X: Post your clip and tag @PlayTheMound.
• TikTok: Upload your video and tag @playthemound.
• Discord: Drop your clip or a direct video link into the #clips-sharing channel on the official Discord server.

Winning creators will be featured on the official social channels and receive a full 4-pack of Steam keys when the game launches, allowing a full squad to play together for free. Keep in mind that submitting your footage grants the developers permission to use it in future marketing materials.

If you need a refresher on how the multiplayer lobby and matchmaking function before jumping in, check out our breakdown of co-op and crossplay mechanics.

Scout Ahead with Mound Codex

While you are recording your runs for the contest, navigating the dark underground structures can be brutal. A new community tool might make survival a bit easier.

Reddit user Reading_9590 has launched Mound Codex, an unofficial database dedicated to tracking in-game assets. The database already contains detailed lists of:

• Weapons and gear stats
• Consumable items
• Enemies and eldritch anomalies
• Patron saints and active contracts
• An interactive map of the subterranean ruins

Using these community maps and item lists is a solid way to coordinate your runs and survive long enough to capture high-quality clips. For a head start on what equipment you should prioritize, refer to our beginners guide and survival tips.

The Xbox Play Anywhere Confusion (Unconfirmed)

While Steam users enjoy the extended demo, console players have raised questions about platform-specific purchasing features. On the Xbox subreddit, community reports indicate that The Mound: Omen of Cthulhu is listed with the "Xbox Play Anywhere" tag on the store. However, players noted that selecting a specific version, such as the Basic Edition, causes the tag to disappear from the purchase screen.

At this time, it is not confirmed whether the game will fully support cross-buy between Xbox and PC, or if this tag display is simply a store listing error. We will update our platforms and pricing guide as soon as Nacon or ACE Team issues a clarification on Xbox Play Anywhere support.