The Mound: Omen of Cthulhu Cheat Sheet - Launch, Price and 25 Achievements

The Mound: Omen of Cthulhu cheat sheet: everything the official listing fixes in one place, from the Jul 15, 2026 launch and the $23.99 US price to the 25 tracked achievements and the 18 ratings that come with a first-person horror expedition.

Key facts at a glance

Field	Value
Release date	Jul 15, 2026
Platform	Windows
Developer / publisher	ACE Team / Nacon
Genres	Action, Adventure
Price at capture	$23.99 (list $29.99)
Deluxe Edition	$39.99 list, $31.99 at capture
Player count	Up to 4, online co-op
Content descriptors	Steam ids 2 and 5
Achievements	25
Languages	11, English with full audio

Achievements, media and languages

The listing's countable items are worth keeping together, because they are what a buyer can check before deciding.

• 25 achievements, ten of them named in the store data.
• 5 store screenshots and 3 trailers.
• 11 languages, of which English carries the full audio flag.
• 4 DLC appids attached to the product, without readable names in the captured data.
• Region ratings of 18 from USK, PEGI, DEJUS and the German scheme, plus an ESRB M and a Taiwan R.

Ratings across the schemes listed

The listing carries more rating lines than most co-op horror games, and they agree with each other.

• USK (Germany): 18, with drastic violence, horror and chats.
• ESRB (US): M, for violence and blood and gore.
• PEGI: 18, for violence.
• CSRR (Taiwan): R, for violence and fear.
• DEJUS (Brazil): 18, for extreme violence, sensitive themes and nudity.
• Steam Germany scheme: 18, for drastic violence and offensive language.
• IGRS (Indonesia): banned, with online interaction, violence and horror cited.

That last entry is unusual and it is worth reading carefully: it is the Indonesian board verdict on the listing, not a storefront restriction on the Steam page.

Co-op and language notes

Four-player online co-op is the headline arrangement, and the listing tags Multi-player, Co-op and Online Co-op without a split-screen option, so a party is expected to meet over the internet rather than around one machine.

Eleven languages are listed, and English is the only one carrying the full audio flag. For a group that coordinates by voice, that is the single most useful line on the language list: the subtitles cover the rest, the voice track does not.

Requirements in one line

The published minimum asks for a 64-bit Windows 10 or 11 machine with an Intel i7-8700k or Ryzen 5 1600x, 16 GB of RAM, a GTX 1660 SUPER, RX 5600 XT or Arc A770, DirectX 12 and 23 GB of storage.

The recommended tier keeps the same 23 GB and 16 GB of RAM, and moves the processor to an i7-11700k or Ryzen 5 5500 with an RTX 3070 or RX 6750 XT. Nothing in either tier mentions frame-rate targets.

What to read next

The full system requirements are broken out on System Requirements, the achievement names are on Achievements, and the launch listing is on Launch & Demo.

Those three pages, plus Availability, cover the same official store data this sheet summarises.