Spectra
Climb the spectrum.
A swipe puzzle with no numbers on the board. Progress is colour — every merge moves a tile one step up the spectrum, from slate through blue, green, yellow, orange and red, to a glowing white tile.
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fun whySpectra()
No Numbers, Just Colour
The board carries no digits. Every merge moves a tile one step up the spectrum — and if you keep going, past white to a rainbow.
Cascades That Sing
Each merge in a cascade plays the next note of a rising pentatonic phrase, so a good move sounds as good as it looks.
Four Ways to Play
Classic 4×4 with no clock, Calm 5×5 with room to think, Blitz 3×3 against 60 seconds, and a Daily challenge shared by every player.
Keep Your Streak
Play the Daily to build a streak — miss one day a week and it survives. Milestones at 3, 7, 14 and 30 days unlock new board palettes.
Built to Feel Good
Springy tile motion, particle bursts on every merge, a glow around the white tile, and haptics tuned to what just happened.
Yours Right Away
Free to play, no account needed — start the moment you open it. A reduced-effects mode keeps older devices smooth.
How far up the spectrum can you get?
Free on Google Play — no account, no wait, just swipe.
Get Spectra — It's Free