The Mound: Omen of Cthulhu offers a co-op survival horror experience that aims to immerse players in a terrifying Cthulhu mythos-inspired world. The game places players in the roles of conquistadors in the mid-1600s Chilean wilderness, venturing into strange tombs and ancient lands in pursuit of riches while battling restless dead and otherworldly horrors. Developer ACE Team has successfully captured the unsettling atmosphere of Lovecraft's mythos, weaving a narrative told through journal entries with strong voice acting that gradually reveals dramatic and satisfying late-game plot twists.
The game's setting, across 18 interconnected maps, provides a richly detailed environment for its core gameplay loop. Expeditions, or contracts, offer goals and rewards, with gear allocation being a key strategic element. With a maximum of four players, the limited equipment often forces difficult decisions about who will focus on combat, exploration, or carrying loot, encouraging varied playstyles and equipment experimentation.
However, The Mound's considerable difficulty presents a significant hurdle. Even experienced co-op players accustomed to similar titles found the game to be exceptionally punishing. While some mechanics, like the expedition timer, are less critical than careful movement to avoid deadly creatures, the rapid scaling of enemy numbers and deadliness can quickly become overwhelming, even on lower difficulties. Portal missions, in particular, are highlighted as extremely frustrating due to instant-death mechanics and limited revive options.
A notable issue arises with how contracts scale, particularly for new players. The random assortment of available contracts may not offer lower-difficulty options suitable for easing newcomers into the game, unlike in titles such as Phasmophobia where players can replay easier missions. This inflexibility means that even a group of seasoned players might struggle to find appropriate entry points if the server host's character level has advanced significantly.
While the prospect of Advanced and Legendary missions offering a greater challenge is appealing, the game lacks sufficient options to tailor the difficulty to a group's capabilities or mood. The baseline difficulty feels excessively high, making it hard to recover from setbacks. A recent patch has reportedly tweaked the difficulty, but its impact has not yet been extensively tested.
Meta-progression in The Mound is minimal, with most character leveling unlocking cosmetic items. Purchasing or upgrading gear before difficult expeditions is a viable strategy, but the loss of these upgrades upon death can leave players broke and without a means to easily earn back resources for another attempt. This lack of a safety net exacerbates the punitive nature of failed high-difficulty contracts.
When the game strikes a balance, the tense combat and horror elements coalesce effectively. The variety of enemies, drawn from deep lore, ranges from basic possessed humans to reality-bending entities that require specific, clever navigation rather than direct confrontation. Resource management and treasure valuation add further tension, especially when attempting to meet quotas as the environment becomes more hostile.
The Mound is also difficult to recommend for solo play. While an NPC companion assists, they are less capable than human players, and completing contracts alone can be a trial even with scaled-down enemy counts. The game is undeniably at its best when experienced with a co-op group.