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 Updated: 1/15/2026
| Release Date | 12/31/2025 |
| Developer | Khaled Chaya |
| Publisher | Khaled Chaya |
| Steam App Id | 3697220 |
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 Updated: 1/15/2026
- Windows
- Mac
- Linux
About Project: Mortuus Astrum Playable Teaser
Project: Mortuus Astrum Playable Teaser is an Action, and Free to Play game developed by Khaled Chaya. On 12/31/2025, it was released on the Steam Store by Khaled Chaya.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Project: Mortuus Astrum Playable Teaser supports the following features:
- Single-player
- Commentary available
- Playable without Timed Input
From the Steam community, Project: Mortuus Astrum Playable Teaser has been tagged with the following user tags:
- Survival Horror
- Dungeon Crawler
- Dark
- Story Rich
- Free to Play
- 3D
- Psychological Horror
- Perma Death
- Linear
- Gore
- Action-Adventure
- Mystery
- Horror
- Hidden Object
- Casual
- Action
- Singleplayer
Media & Sceenshots
Watch the featured video for Project: Mortuus Astrum Playable Teaser and see the latest screenshots from the Steam Store.

Supported Languages and Localizations
Project: Mortuus Astrum Playable Teaser is available in 2 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | No |
| Spanish (Spain) | No | Yes | No |
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Project: Mortuus Astrum Playable Teaser data has been sourced from:
- Valve Corporation. (2026, January 15). Project: Mortuus Astrum Playable Teaser on Steam. Steam Store.
- Valve Corporation. (2026, January 15). Project: Mortuus Astrum Playable Teaser . Steam Community Hub.