Last 7 days · history since Nov 1, 2026
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.
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100% positive of 4 · 4 user reviews · Live from Steam
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A first-person cosmic horror short experience set in a hallway-style map, where you uncover the secrets of an abandoned facility while being stalked by a mysterious entity
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 100% on 2026-11-01 → 100% today (4 reviews)
No changes recorded yet.
No authorized Steam key store lists this game right now.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Hello everyone! First of all, thank you so much to everyone who played the Playable Teaser. Your support means the world to me! In this update:Fixed several bugs related to respawn and crashes.Improved overall gameplay and enhanced the enemy AI.Added the optio…
Hi everyone!Thank you so much for playing Project Mortuus Astrum!I’ve just released a new update that fixes several bugs, including improvements to the main enemy’s AI and physics-related issues.This update also introduces a respawn system and brand-new cinema…
i am still working on the full game, thank you the very few people who actually read these posts, i dont have any other way to comunicate with you, here some of the work i made these days, this game will be a lengendary hidden gem, after this I will work on th…
spider
HIIIIII. First of all, a massive thank you to the thousands of you who keep exploring and visiting this teaser page every single week. Your support is what drives this game forwardI’m still working hard on the full version of the game, and the scale of the hor…
Hi everyone!I just wanted to let you know that I'm still actively developing the full game. I hope to have it ready by October! Balancing my job and college has slowed me down a little bit, but it's nothing I can't handle.Thank you so much for being interested…
Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.