Announcement
Some of my work
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 forward I’m still working hard on the full ver…
Steam
Project: Mortuus Astrum Playable Teaser
Also known as Project: Mortuus Astrum Playable Teaser, pmapt, project mortuus astrum playable teaser
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
Last update
22 Jun 2026
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- May 2026
- newsHi 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 han…
- January 2026
- 2nd updateHello 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 gamepla…
- December 2025
- First update!!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 intr…
Gallery