The Mound: Omen of Cthulhu PC Steam Key

Survive the Reality-Distorting Horrors of The Mound: Omen of Cthulhu

Dive into an atmospheric and punishing Lovecraftian co-op extraction shooter crafted by ACE Team and published by Nacon. In The Mound: Omen of Cthulhu, you play as a team of explorers venturing deep into a cursed jungle in search of unimaginable riches. But beware—the supernatural forces inhabiting these ruins will not just hunt you; they distort your very perception, breaking the boundary between reality and illusion to sow paranoia within your squad.

Intense Co-op Extraction and Psychological Horror

Team up with up to 4 players in cooperative PvE or brave the madness alone in single-player mode. Prepare your galleon, select period-accurate weaponry, and coordinate your loadout before launching into highly dangerous expeditions. Every step forward escalates the danger as you face unholy creatures and mind-bending hallucinations. Rated ESRB M (Mature 17+) and PEGI 18+ for intense violence, blood, and gore, this title delivers a gripping, mature horror experience where knowledge is your ultimate weapon.

Optimized Performance and Key Features

• Lovecraftian Atmosphere: Immerse yourself in a psychological survival horror game with stunning, dread-inducing environments.
• Tactical Teamwork: Coordinate your strategy with friends or strangers to manage your sanity and combat brutal monstrosities.
• Seamless Activation: Claim your Steam Key on your Activation Platform and launch directly into the action.
• Broad Compatibility: Fully optimized for Compatible Systems including Microsoft Windows and GeForce Now cloud gaming.

Are you prepared to face the creeping chaos, or will the jungle devour your sanity? Secure your The Mound: Omen of Cthulhu PC Steam Key today and test your grit against the ancient horrors of the deep.

© 2026 Nacon

• Release date:
  July 15, 2026

• Publisher:
  Nacon

• Developer:
  ACE Team

• Genres:
  Action, Adventure, Shooter, and Horror

• PEGI rating:
  18

• Activation platform:
  Steam

• Native systems:
  PC

• Playable on:
  Microsoft Windows

• Supported languages:
  JA, ZH, PL, PT, RU, IT, FR, DE, ES, EN, KO

• Activation region:
  Rest of World (See below)

• Region exceptions:
  Can be activated in TG, UG, EH, ZM, SD, ZW, SH, YT, AF, BH, TL, IR, IQ, MV, MN, KP, OM, YE, MO, AD, AT, BE, BG, HR, CY, CZ, DK, EE, FI, DE, GR, HU, IS, IE, IT, XK, LV, LI, LT, LU, MT, MC, NL, DZ, AO, BJ, BW, BF, BI, CM, CV, CF, TD, KM, CG, CD, CI, DJ, GQ, ER, ET, GA, GM, GH, GN, GW, KE, LS, LR, MG, MW, ML, MR, MU, MZ, NA, NE, NG, RW, ST, SN, SC, SL, SO, SS, SZ, TZ, KN, LC, MF, PM, VC, BQ, SX, TT, TC, VI, FK, GS, BV, UM, AN, AU, FJ, NZ, FO, KI, MH, NR, PW, PG, WS, SB, TO, TV, VU, AS, CK, GU, HM, MP, NC, NU, PF, PN, TK, WF, NF, AQ, TF, NO, PL, PT, RO, SM, SK, SI, FR, ES, SE, CH, GB, GG, GI, IM, JE, SJ, VA, CA, US, AG, AI, BL, BQ, PR, UM, MS, MQ, JM, HT, GP, GD, GL, DO, DM, CW, CU, CP, KY, VG, BQ, BM, BB, and AW

This Steam key is a genuine, brand-new retail license sourced via reliable B2B distribution channels and delivered electronically via email. Due to the nature of digital goods, the standard 14-day cancellation right is waived once the key has been delivered, unless proven defective. Activation constitutes legal acceptance of the publisher's underlying end-user license agreement (EULA) and third-party terms of service.

1. Download and install Steam*
2. Open Steam
3. Sign into your Steam account
4. Click the “Games” menu at the top-left corner
5. Select “Activate a Product on Steam…”
6. Enter your product key
7. Follow the prompts to complete activation