Choose Altarium
Choose Altarium if it's currently about 58% cheaper on the Steam Store. Altarium launched in 2024.
Altarium vs The Mound: Omen of Cthulhu
Altarium and The Mound: Omen of Cthulhu both land in Adventure on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Adventure games on Steam. Altarium (2024) is 2 years older than The Mound: Omen of Cthulhu (2026). The Mound: Omen of Cthulhu scores higher on Steam reviews (68.1% positive) than Altarium (65.6% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose The Mound: Omen of Cthulhu
Choose The Mound: Omen of Cthulhu if you want an Action game with DualShock Controller Support, Subtitle Options, and Camera Comfort. 2,777 Steam reviews back the pick.
Both Altarium and The Mound: Omen of Cthulhu sit in Adventure on Steam and both list Multi-player, Online Co-op, and Co-op, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Altarium |  The Mound: Omen of Cthulhu | |
|---|---|---|
| Released | 2024 | 2026 |
| Genres | Adventure | Action, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 9.99 USD | 23.99 USD |
| Steam reviews | 65.6% positive (32 reviews) | 68.1% positive (2,777 reviews) |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Metavision Studio | ACE Team |
Side by side
- Both are Adventure games on Steam.
- Altarium (2024) is 2 years older than The Mound: Omen of Cthulhu (2026).
- The Mound: Omen of Cthulhu scores higher on Steam reviews (68.1% positive) than Altarium (65.6% positive).
- Altarium is currently ~58% cheaper on Steam than The Mound: Omen of Cthulhu (9.99 USD vs. 23.99 USD).
- Both support cooperative play.
Altarium vs The Mound: Omen of Cthulhu — FAQ
- Should I play Altarium or The Mound: Omen of Cthulhu first?
- If you want chronology, Altarium (2024) came out before The Mound: Omen of Cthulhu (2026). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Altarium and The Mound: Omen of Cthulhu similar?
- They overlap on Adventure on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Do both Altarium and The Mound: Omen of Cthulhu have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Altarium ships Online Co-op, Co-op; The Mound: Omen of Cthulhu ships Online Co-op, Co-op.