
Screenshots

Watch trailer on Steam ↗Alteration
Asteria Interactive · Published by Asteria Interactive · Official site ↗
Content notice: This game contains mature thematic elements, including psychological horror, brief depictions of non-sexual nudity, and stylized violence. The experience explores disturbing subjects such as death, divinity, and existential fear through symbolic and surreal imagery rather than explicit content.
Last updated 28 Sept 2026
A narrative experience of psychological horror and metaphysical mystery. Reality bends, time stutters, and something unseen follows your every breath.
Adventure, Indie, Free To Play · More free games
Embark on a free-to-play journey through Alteration, an indie narrative experience that challenges your perceptions of reality. Dive into a metaphysical mystery where every moment feels like it’s watching you.
About this game
“You think you’re certain you’re awake… but perhaps you’re still dreaming.”
Alteration is a narrative-driven first-person experience that blends psychological horror, science fiction, and philosophical mystery. At its core, it is an escape room, though it rarely feels like one.
At the beginning, you are faced with a choice:
Truth or Liberty.
From that moment on, your path begins to diverge.
A dark and haunting figure appears. It follows you, or perhaps leads you, through a series of surreal and increasingly hostile scenarios. It speaks in unfamiliar languages and takes on forms that feel both external and deeply personal.
Each scenario is a test.
Each one requires you to observe, interpret, and solve.
You will decipher symbols, languages, and environmental clues in order to progress. At times, you will be given abilities that allow you to manipulate your surroundings in ways that defy logic. Using them correctly is the only way forward.
Your choices determine where you go and what you encounter.
Different paths lead to different places. Collapsed worlds. Ancient structures. Impossible environments. Each one reveals fragments of something larger.
Something hidden.
Something watching.
If you manage to make it through…
you might discover something.
Perhaps something terrifying.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Intel Core i5-9 Gen / AMD Ryzen 3 4100 4 cores 3.8 GHz
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 1080 Ti / AMD Radeon RX580 8GB
- DirectX: Version 11
- Storage: 25 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 or higher
- Processor: Intel Core i7- 09 Gen / AMD Ryzen 5 4500 6 cores 3.6 GHz
- Memory: 16 GB RAM
- Graphics: NVIDIA GeForce RTX 2060 / AMD Radeon RX 6700 XT
- DirectX: Version 11
- Storage: 25 GB available space
Supported Languages
*languages with full audio support






