The Mound: Omen of Cthulhu Launch Time, PC Requirements and Steam Deck Performance

Bottom line

Evidence status

Release status and time

The official date is July 15, 2026 on PC, PS5 and Xbox Series X|S. At review time, Steam still returned a prerelease state. SteamDB's live record showed 08:00 UTC, equal to 11:00 AM EAT, 4:00 AM Eastern and 1:00 AM Pacific.

• SteamDB is a third-party tracker of Valve data, so treat 08:00 UTC as the best current listing, not a publisher guarantee for every storefront.
• A previously circulated 10:00 UTC time is no longer the current SteamDB value.
• Console storefront timing can differ by region.

Sources: The Mound on Steam, SteamDB release record.

Official PC requirements

Steam publishes both tiers and warns that the information may change until launch. Neither tier includes a stated resolution, frame-rate target or quality preset.

Sources: Official Steam requirements, FrameReady Can I Run checker.

Co-op and crossplay

The Mound supports single-player and online co-op for up to four explorers. ACE Team said it was actively developing with crossplay in mind, but the checked launch store pages did not publish a final platform-by-platform crossplay matrix.

• Four-player online co-op is official.
• The developer's March 2025 wording was that crossplay was the plan, not a final launch certification notice.
• Crossplay between Steam, PS5 and Xbox Series X|S should therefore remain developer-planned until the retail build or a current official FAQ confirms it.
• Cross-progression has not been confirmed.

Sources: ACE Team developer response, NACON game page.

Price, editions and launch offer

NACON's Steam community announcement lists the Standard Edition at $29.99 and Deluxe at $39.99. The Deluxe version adds two playable Fortune Hunters, an Abyssal Gear pack and the digital soundtrack.

• NACON announced a 20 percent Steam launch discount for both editions starting July 15.
• At 3:42 AM UTC, Steam had not activated sales, so the launch discount was announced but not active yet.
• The Lost Explorers Swords Pack is an early-adopter bonus for purchases in the first two weeks.
• NACON says The Mound passed 800,000 Steam wishlists before release.
• Store prices and console discounts vary by region and membership.

Sources: Official Steam Community hub, NACON editions page.

Steam Deck evidence is demo-only

SteamDeckHQ tested the demo, not the final retail build. It reported 30 FPS and above on Low with FSR set to Balanced, with some areas falling below 30 FPS.

• That result is useful evidence that the demo could run, but it is not proof of launch-build stability.
• Steam had no retail compatibility badge to rely on while the app was still prerelease.
• FrameReady is not issuing a final Steam Deck playable verdict until the retail build is rated or tested.

Sources: SteamDeckHQ July 2026 testing, Steam store.

What remains unverified

The launch page supplies enough information to judge hardware on paper, but not enough to promise real-world performance.

• Final-build PC and Steam Deck frame rates, frame pacing and shader behavior.
• Launch-day server, matchmaking and crash stability.
• Final crossplay platform matrix and any account requirement.
• Resolution and graphics targets behind the minimum and recommended PC tiers.
• Any regional difference in release time or discount duration.

Related next steps

Sources

• official: The Mound Steam page. Official date, PC requirements, features and prerelease state.
• official: NACON game page. Publisher game, platform and edition information.
• official: Steam Community announcements. NACON's pricing, launch discount and 800,000-wishlist announcements.
• inferred: SteamDB app record. Live prerelease state and 08:00 UTC store-release value.
• inferred: SteamDeckHQ demo test. Hands-on Steam Deck results from the demo, not the retail build.
• official: ACE Team crossplay response. Developer-stated crossplay plan from March 2025; not a final platform matrix.