FUSE

FUSE is a minimal, modern take on the merge puzzle genre.

Slide glowing crystals across a 4x4 grid. When two crystals of the same tier collide, they fuse into a higher form — from I all the way to the legendary golden Prism.

No timers. No ads. No distractions. Just you, the grid, and the quiet satisfaction of everything clicking into place.

Features

- Elegant & minimal — clean design with a soothing cool-gradient palette

- Two themes — dark and light modes, your choice is remembered

- Sound design — soft chimes that rise in pitch as your crystals grow (toggleable)

- Particle effects — every fusion bursts with light

- One-step undo — second-guess in peace

- Best score saved — your record persists between sessions

- Plays anywhere — keyboard or touch, desktop or phone

How to play

1. Swipe (touch) or use arrow keys / WASD to slide all crystals

2. Crystals with the same roman numeral fuse when they collide

3. Each fusion doubles the crystal's tier

4. Reach the Prism to win — then keep going for a higher score

Tips

Keep your highest crystal pinned in a corner, and think one move ahead — the board fills up faster than you would expect.