Operation Ninurta - Eris Portal overview

Overview

Operation Ninurta - Eris Portal comes from Mariani Games and is published by Mariani Games. It arrived on Steam on Jun 26, 2025, and it sits naturally among Single-player, Steam Achievements, Camera Comfort, Custom Volume Controls, Adjustable Difficulty, Stereo Sound, Surround Sound, and Family Sharing. SteamPulse tracks it across Windows and Steam so readers get a quick useful snapshot, not just a wall of numbers.

Players and reviews

Operation Ninurta - Eris Portal's latest SteamPulse observation recorded 0 players at 11 September 2026 - 03:42:31 UTC, with a tracked peak near 1. This peak is the highest value in the available SteamPulse record and may not include activity before tracking began. Player reaction is 100% positive across 1 reviews.

Language and system requirements

Operation Ninurta - Eris Portal is available in 13 languages including:

3 regional rating boards including dejus, steam germany, and igrs

Sales, recommendations, and streams

Operation Ninurta - Eris Portal has no public VGI unit-sales estimate available and has recommendation data pending. Revenue data is not available for this game yet. On Twitch, 0 streamers are live with around 0 total watchers.

Operation Ninurta - Eris Portal overview details

Operation Ninurta - Eris Portal combines live player counts with reviews, pricing, platform support, Store metadata, dated player history, media, recent news, and related games.

Steam Store description

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 u…

SteamPulse editorial summary

Operation Ninurta - Eris Portal is listed as a game with No longer available on Steam Store. It supports Windows, belongs to Single-player, Steam Achievements, Camera Comfort, Custom Volume Controls, Adjustable Difficulty, Stereo Sound, Surround Sound, and Family Sharing, and is associated with Action, Adventure, Casual, and Indie. SteamPulse's latest observation records 0 players at 11 September 2026 - 03:42:31 UTC, a tracked peak of 1, and 100% positive reviews.

Highlighted achievements

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.