NN456PrismLen

NN456PrismLen is a quiet, offline light puzzle game set inside a precisely built geometric universe. Your task is to find the one correct path for each beam and unlock the key that clears the dark.

Each level gives you a grid, a light source, and one or more shadowed targets. You have a limited inventory of optical tools at your disposal:

• Mirrors redirect a beam at a right angle. Place them on empty cells and tap to rotate until the path feels right.
• Prisms split white light into red, green, and blue, or let a single color pass through unchanged.
• Lenses turn a beam around or reverse its direction, helping you reach awkward corners.
• Color filters only allow matching colors to continue, turning a simple white ray into a precise key.

Long-press any placed tool to return it to your inventory. Reset a level whenever you want a clean start. Progress is saved locally and unlocks the next puzzle one step at a time. A dark theme and sound toggle let you play comfortably in any environment.

No account, no ads, no network connection, and no sensitive permissions are required. Every puzzle is solvable offline, making it a calm companion for commutes, waiting rooms, or late-night thinking.

If you enjoy spatial reasoning, minimal optics, and small geometric victories, this is built for you.