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Parallel Self
A boy and his shadow. That's all it seemed to be. A challenging one-button 2D action game. On your second run, the whole truth is revealed.

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Features
Single-player
Steam Cloud
Family Sharing
Profile Features Limited 
Languages:
Interface Full Audio Subtitles
English ✔ ✔
Simplified Chinese ✔ ✔
Japanese ✔ ✔
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About This Game

Run. With your shadow, and beyond.

A one-button 2D action game where the top and bottom screens move in perfect sync.
One button. One jump. Simple to pick up — yet the further you go, the sharper it gets.

A boy learns his mother has been taken by the Demon Lord.
He runs to bring her back.
And at his feet, a shadow follows him everywhere.

―Who that shadow really is, the boy does not yet know.

The truth changes on your second run.

The story told in the first run and the second run are different.
As you race through the same stages again, you'll slowly realize:
the answer was there all along, from the very beginning.

Die. Learn. Run again.

This game doesn't go easy on you.
Burn the obstacle patterns into your memory through repeated failure, and inch your way forward.
When you finally clear it — it feels like more than just beating a game.

Features

  • Intuitive one-button controls

  • A unique dual-screen system where top and bottom are always in sync

  • A hidden truth between mother and son, revealed only on the second run

  • A dark, emotional story

  • Baroque-style BGM inspired by Vivaldi's "Winter"

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

This game was developed with the assistance of generative AI in the following areas:

Programming assistance: Claude Code (Anthropic) was used to assist with coding and debugging
BGM: Music was generated using Suno AI
Story illustration images: Some narrative artwork was generated using NanoBanana

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: OS: Windows 10 64-bit
    • Processor: Intel Core i3 or equivalent (Dual-core 2.0 GHz or higher)
    • Memory: 4 GB RAM
    • Graphics: DirectX 12 compatible integrated GPU (Intel HD 4000 or later / Vulkan 1.2 equivalent)
    • DirectX: Version 12
    • Storage: 500 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10/11 64-bit
    • Processor: Intel Core i5 or equivalent (Quad-core 2.5 GHz or higher)
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GTX 750 Ti / AMD Radeon R7 260X or equivalent
    • DirectX: Version 12
    • Storage: 1 GB available space
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