About the Game
Gameplay
During your journey, you will be confronted with a variety of original and challenging puzzles. You will be required to form ingenious systems by building blocks having different abilities, such as deflecting and merging laser beams, turning and pushing other blocks.
Unleash your creativity and problem-solving skills to progress through the game, unravel the mysteries of your surroundings and unlock new information as you delve deeper into the unknown.
The laser puzzles are interspersed with sliding puzzles that require strategic moves to solve.
Story
In 2075, a space probe saw a strange platform floating in space near Jupiter. The government has decided to finance a space mission to send you on this platform to elucidate the mystery. Your mission is to discover why this platform exists and who built it.Further details
- 40 levels/platforms to discover.
- 95 puzzles (45 puzzles with lasers and 50 sliding puzzles).
- 20 puzzle achievements that extend the game experience.
- Each puzzle is unique and provides a new idea.
- Lasers are all marked with symbols for colorblind players.
Screenshots
9 images
Version Information
Steam Patch Notes
Official update history
On the site: Build 26183688
Up to date
Release notes (v1.3.12):
View on Steam
- Fixed a crash that occurred when launching the game from a directory containing Cyrillic characters
Release notes (v1.3.11):
View on Steam
- Automatically show the virtual keyboard on Steam Deck and Steam Machine when a text field is focused
- Improve lighting performance
- Engine: Fix a synchronization issue affecting save screenshots
Release notes (v1.3.10):
View on Steam
- Improved GPU selection to prefer the integrated GPU over the software renderer
- Improved UI visuals on small screens
- Linux: detect the correct keyboard layout (QWERTY/AZERTY) on Wayland
- Fixed an asteroid clipping into Jupiter on Level 25
- Improved crash report generation speed
- Linux: crash reports are no longer generated for SIGTERM or SIGINT, but are now generated for SIGBUS
Release notes (v1.3.8):
View on Steam
- Fixed a crash that occur when the game is resized/minimized and models behind the camera had not been displayed for a long time
- Fixed a crash that occur when enabling Anti-Aliasing and Ambient Occlusion after launching the game with those options initially disabled
- Reduced shadow acne, especially on low settings.
Release notes (v1.3.7):
View on Steam
- Fixed a crash at game start occurring on some AMD graphics drivers
- Fixed a bug where the game could crash when the mouse was moved over a mirror block
Release notes (v1.3.6):
View on Steam
- Fixed a bug that caused the game to crash when a laser hit the space capsule
Release notes (v1.3.5):
View on Steam
- Add support for Intel Arc graphics cards
- Fixed a bug where open doors appeared closed
- Improved laser color, which appeared too red due to sunlight
- Added missing physics to airlock vent objects
Release notes (v1.2.3):
View on Steam
- Fixed a bug causing the game to crash when attempting to reveal hints for level 25 sliding puzzles
Release notes (v1.2.2):
View on Steam
- Fixed a bug where the merger block wouldn't output a laser when one input laser had been indirectly disabled by a pusher block
- Platforms 34: A new achievement has been added to the sliding puzzle (thanks to Xebulin)
- Platforms 34: Fixed the achievement "All solutions (2)", which was possible to achieve with the same solution
Release notes (v1.2.1):
View on Steam
- Platforms 21, 22, 25: fixed a bug on sliding puzzles that could cause the game to crash due to a memory corruption
Release notes (v1.1.3):
View on Steam
- Platform 32: new achievement added for the sliding puzzle
- Improved Spanish translation for the achievement descriptions
- Improved technical log to detect Vulkan presence
Current Release
Build 26183688
Uploaded Oct 24, 2026
System Requirements
OS
Windows 10 / 11
CPU
N/A
RAM
N/A
GPU
N/A
How to Install
1
Download all files
2
Extract the .ZIP file to a folder (use WinRAR or 7-Zip)
3
Run photonEngineer.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Archive password
Needed when extracting (WinRAR / 7-Zip) — not a site login.
CRC32
32066881
SHA-256
da7e116c2a2fe7965f1394ca28267e36769ba8df80560c1045073c3788760a1f
How: Right-click the downloaded file → 7-Zip / WinRAR → CRC SHA → compare with the values above.
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Download Photon Engineer for PC with a direct link or via torrent. Get the full version of Photon Engineer for free. Photon Engineer is a Adventure released by Grégory Petit.