Control two characters with one move. Guide Wanderer and Echo through different walls while keeping them within reach of their tether. Solve 60 puzzles across four worlds, then take on 60 Challenge Mode levels with separate exits.

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About This Game

One move. Two paths. Stay close.

Move Wanderer and Echo together through a single-player spatial puzzle. A physical wall stops Wanderer while Echo passes through; a spirit wall does the reverse. Use those differences to line up their paths.

The tether limits how far apart they can move. If your next move would stretch it too far, that movement is blocked. Find a route that brings Wanderer to the exit while keeping Echo safe and within reach.

Four worlds, 60 puzzles

  • Awakening: Learn to separate and reunite the pair using walls that block one character and let the other through.

  • Risk: Plan around one-way passages and hazards that threaten Wanderer.

  • Shelter: Push blocks to reshape routes and protect Echo from spirit hazards.

  • Reunion: Step on magnets to pull or push the other character. Use that displacement to bring both paths into reach.

60 Challenge Mode levels

Complete a world to unlock its Challenge Mode. Each character has a separate exit and locks in place on arrival, so decide who finishes first. In Worlds 2–4, Phase Shift tiles change passability together when triggered.

Keep exploring

Try the Daily Challenge and track your streak. Revisit campaign puzzles to improve your move count, or use undo and reset to try another route. Take optional detours for Memory Fragments that piece together the pair's story.

  • Keyboard, mouse and gamepad controls

  • Colorblind palettes

  • Reduce Motion options for visual effects

  • Unlockable character skins

Wishlist Phase Sync to follow its release.

AI Generated Content Disclosure

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

Generative AI tools assisted during development with portions of puzzle and level ideation, written content, localization drafts, and store-page marketing materials. All generated suggestions were selected, reviewed, edited, tested, and integrated by the developer. Phase Sync does not generate content during gameplay, and no player data is sent to generative AI services.

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 64-bit
    • Processor: x86_64 with SSE4.2
    • Memory: 4 GB RAM
    • Graphics: Vulkan 1.0 or Direct3D 12 GPU
    • Storage: 500 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 or newer, 64-bit
    • Processor: x86_64 with SSE4.2
    • Memory: 8 GB RAM
    • Graphics: Dedicated GPU supporting Vulkan 1.2
    • Storage: 500 MB available space
    Minimum:
    • OS: macOS 13 or newer
    • Processor: Apple Silicon, or Intel with a Metal 3 GPU
    • Memory: 4 GB RAM
    • Graphics: Metal 3-capable GPU
    • Storage: 500 MB available space
    Recommended:
    • OS: macOS 13 or newer
    • Processor: Apple Silicon, or Intel with a Metal 3 GPU
    • Memory: 8 GB RAM
    • Graphics: Metal 3-capable GPU
    • Storage: 500 MB available space
    Minimum:
    • OS: 64-bit Linux distribution, glibc 2.28 or newer, released after 2018
    • Processor: x86_64 with SSE4.2
    • Memory: 4 GB RAM
    • Graphics: Vulkan 1.0-capable GPU with current drivers
    • Storage: 500 MB available space
    Recommended:
    • OS: 64-bit Linux distribution, glibc 2.28 or newer, released after 2018
    • Processor: x86_64 with SSE4.2
    • Memory: 8 GB RAM
    • Graphics: Vulkan 1.0-capable GPU with current drivers
    • Storage: 500 MB available space
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