Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 3781380 |
| Live current players | 0 |
| SteamPulse tracked peak | 1 |
| Live count (today's peak floor) | 0 |
| Price | No longer available on Steam Store |
| Free to play | No current Steam offer |
| Discount | Not available |
| Original price USD | Not available |
| Current price USD | Not available |
| Release date | Jun 26, 2025 |
| Developer | Mariani Games |
| Publisher | Mariani Games |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | 1 user reviews |
| Positive review percent | 100% |
| Positive reviews | 1 |
| Negative reviews | 0 |
| Total reviews | 1 |
| Steam recommendations | Not available |
| Achievements | 25 |
| Average playtime forever | 14 minutes |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | Not available on Steam Store |
Short description
Operation Ninurta is a third-person tactical shooter with roguelike elements. Explore an infinite procedural maze on Eris, face mutants and bosses, find three crystal keys, and reactivate the portal to win. With limited ammo, upgrades, and warped realities, strategy is vital.
About this game
Operation Ninurta – Eris Portal Operation Ninurta – Eris Portal is a third-person tactical shooter with roguelike elements, set in the near future, where Earth soldiers are sent on solitary missions through spatial portals. You are the next to cross... Your destination: Eris, a dark planetoid on the edge of the Solar System, marked by signs of alien presence and structures that defy the known laws of physics. Origin of the Operation The operation was created by LEAP — Laboratory for Advanced Portal Studies — after the discovery of archaeological artifacts containing coordinates to ancient portals hidden among celestial bodies. However, current technology allows only one traveler to cross every 40 hours. This limitation led to the formation of a special unit: elite soldiers trained for solitary missions in unknown territories. Mission Your mission is clear: investigate Eris, find three crystal keys that power the portal structure, and use them to reactivate the connection back to Earth. But the task quickly proves more dangerous than anyone expected. The planetoid holds a maze of interconnected hexagonal rooms — a system that, at first glance, seems to obey the rules of three-dimensional space. Hexadimensional Reality However, as you pass through these doors, you soon realize something is wrong. The topology of the maze follows a logic based on the six-faced hypercube theory, where time is treated as a physical dimension. This means entering a room through one door and trying to return through it won’t take you back to where you came from. Each movement alters space in unpredictable ways. There is no easy return. Moving forward is your only choice. Dangers While exploring the facility and searching for the keys, you'll face mutant creatures — life forms genetically manipulated by ancient alien civilizations. These unarmed enemies pose no direct threat, but they move in groups, act erratically, and are used to distract your attention. Their role is simple and cruel: create chaos and open space for the real danger. Aliens Armed enemies appear randomly as you progress. They are lethal, and both their presence and quantity are carefully controlled by a system o…
Supported languages
English, French, Italian, German, Spanish - Spain, Simplified Chinese, Traditional Chinese, Korean, Japanese, Polish, Portuguese - Brazil, Russian, Turkish