Does it keep earning while I'm away?

It does. Your helpers earn Spectrum passively, and you'll collect capped offline earnings when you return.

How do I earn faster?

Buy more buildings, purchase Boosts, and ascend to bank Prism Cores — each one permanently multiplies your output.

What does ascending (prestige) do?

Ascending resets your Spectrum and buildings but grants Prism Cores that boost every future run, so you grow much faster.

Can I play on my phone?

Yes, it's fully touch-friendly and works on phones, tablets and desktops with one-tap controls.

Is my progress saved?

Your progress saves automatically in your browser, so you can close the tab and pick up right where you left off.

👆 Rainbow Prism Peak

📖 View Web Story

Rainbow Prism Peak drops you into a crystal mountain summit and dares you to build the most vivid spectrum empire on the web. It all starts with a single tap on the prism: each press mints a little Spectrum, and Tap the prism to split sunlight into a cascade of spectrum that pays out in every color.Spend what you earn to hire helpers like Little Refractors, Busy Refractors and eventually Cosmic Refractors. They keep working even after you stop tapping, so your Spectrum ticks up every single second — close the tab and you'll come back to a tidy pile of offline earnings. Stack boosts such as the "prism Festival" to multiply everything, then chase achievements that hand you a permanent edge.When growth slows, ascend to bank Prism Cores: each one you hold quietly supercharges all future runs, turning a slow start into an avalanche. Rapid tapping builds combos for explosive bursts, and it runs instantly in your browser on phone, tablet or desktop — no download, no sign-up. Fire up Rainbow Prism Peak, find your rhythm, and see how big an empire spectrum can buy.

How to play

Tap or click the prism (or press Space) to earn your first Spectrum.
Open the Buildings tab and buy Little Refractors to start earning Spectrum automatically.
Reinvest into stronger helpers like Turbo Refractors and Cosmic Refractors as costs climb.
Grab Boosts and unlock achievements to multiply how much Spectrum you make.
When progress slows, hit Ascend to bank Prism Cores for a permanent boost, then climb faster.

Controls

Tap or click the subject to earn (Space or Enter also taps). Press number keys 1–9 to buy buildings, P to ascend and M to mute. Fully playable with touch on mobile.

Features

Most vivid spectrum theme set in a crystal mountain summit
Five upgradeable helpers from Little Refractors to Cosmic Refractors, each with its own boosts
Idle income that keeps earning while the tab is closed, with capped offline catch-up
Prestige system: ascend to bank Prism Cores for a permanent, stacking multiplier
Achievements, satisfying tap combos, sound effects and an automatic local save