
Screenshots

Watch trailer on Steam ↗Chiasmus
Mad Rat Game · Published by Mad Rat Game
Content notice: This game may contain content not suitable for all ages or for viewing at work: depictions of blood, bones, internal organs, alcohol and cigarettes, a self-harm scene, oppressive and frightening atmosphere, ghosts and supernatural entities.
Last updated 28 Sept 2026
Viktor finds himself in a mysterious apartment with no way out. He discovers an amazing ability to move between two parallel worlds. This discovery helps him piece together the scattered fragments of what is happening and find the key to solving the mystery.
Adventure, Indie · 2026 · More free games
In Chiasmus, Viktor navigates a perplexing apartment while unlocking his ability to traverse two realities, piecing together clues to solve the enigma.
About this game

The game's title contains a rhetorical device where the structure of a phrase or sentence is repeated in reverse order. This creates a mirrored structure that emphasizes contrast and reflects the duality of everything. This is revealed in the project: personalities, places, events… Everything has a mirror reflection.
The story follows the protagonist Viktor and his old, long-forgotten acquaintance Alexandra, whose fates are intertwined. The heroes wake up in unfamiliar surroundings and become prisoners of both the room and the situation. Their task is to find a way out by overcoming difficulties, puzzles, and… a parallel world, which is a distortion of reality. To find the culprit behind the incident and unravel the mystery of this entity.
The story has several outcomes influenced by your choices throughout the playthrough — decisions can lead to both joyful and catastrophic consequences.
Features:
A deep plot with unexpected twists.
Travel between two worlds.
An atmospheric world.
Choices affecting the development of events and the ending of the story.
Engaging puzzles and intricate riddles.
Detailed 2D graphics.
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7
- Processor: Intel Core 2 Duo E8400 или AMD Athlon 64 X2 6000+
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 260
- DirectX: Version 9.0
- Storage: 5 GB available space
Recommended
- OS: Windows 10
- Processor: Intel Core i3-4130 или AMD A6-6400K
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GT 730
- DirectX: Version 11
- Storage: 5 GB available space
Supported Languages
*languages with full audio support






