Project: Mortuus Astrum Playable Teaser

Project: Mortuus Astrum Playable Teaser

Khaled Chaya · October 9, 2025 · Casual, Action-Adventure, Dungeon Crawler, Hidden Object, 3D

Project: Mortuus Astrum Playable Teaser is free to play — no purchase needed. We track it so you know if that ever changes.

PC
4 user reviews100% · 4
This game is free to play. Get it on Steam →

Screenshots

Project: Mortuus Astrum Playable Teaser price

Project: Mortuus Astrum Playable Teaser is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Project: Mortuus Astrum Playable Teaser

Project Mortuus Astrum is a short first-person cosmic horror experience set in a decaying, labyrinthine facility. You awaken alone, disoriented, and pursued by an unseen entity.Explore claustrophobic corridors and abandoned rooms as you uncover environmental clues and solve spatial puzzles to unlock new areas. The game features a hallway-style map design focused on tension and atmosphere, with dynamic audio cues and visual storytelling.There is no combat—your only tools are observation, memory, and movement. The entity stalking you reacts to sound, forcing you to adapt your exploration strategy. The experience lasts approximately 10-15 minutes.Will you escape the facility… or become part of its forgotten history?

Project: Mortuus Astrum Playable Teaser — game info

Platforms
Windows
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Oct 9, 2025
Interesting (but very early) proof of concept. The environments are nicely done and have quite the creepy vibe despite a ton of re-used assets. Monster behaviour needs some work though (I wish there were ways to bait or lure him away) and is pretty broken sometimes (that thing HATES the stairs with a passion) and will just stop moving if you stand in some corners, leaving you with no choice but to fail and restart if you want to beat the game. It's also a bit frustrating to start at the beginning each time you get caught. Took me about an hour to finish (and I only managed to do so after learning some of the major flaws in the pathing AI with trial and error). Overall, not a bad demo, especially since it's free, but it will require some QoL if the devs are to make it a fun full experience. Here's my gameplay of a normal exploration run (where I lose) and the final successful attempt : https://youtu.be/wkCD0N05cGw
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