Tetrahue: Colour Block Puzzle

Tetrahue is a colour puzzle game where falling blocks descend onto a grid. Clear the target colour to trigger cascades. Premium Prism Mode adds a colour-mixing twist: blend droplets to create the target shade.

Two ways to clear:
• Fill a complete row in any colours.
• Group six or more connected cells of the active target colour into a single region.

The target colour rotates between Cyan, Magenta, and Yellow. When a region clears, gravity drops every remaining piece group as a connected unit, which frequently triggers a chain reaction.

There is no level cap, no time pressure, and no mid-game paywalls.

DAILY CHALLENGE
A new seeded board every day with a rotating twist (Double Cascade, No Hold, T-pieces only, and others). Everyone plays the same board that day. Available to all players, no Premium required.

MODES
• Endless: the default mode, no timer, no level cap, speed builds the longer you play.
• Prism Mode (Premium): a colour-mixing twist. Blend droplets to create the target shade; the target now spans six colours instead of three. A short in-game tutorial introduces the mechanic.
• Mirror Mode (Premium): left and right controls are flipped, for an added challenge.

CONTROLS
Drag to slide, tap to rotate, swipe up to hold the active piece.

ACCESSIBILITY
Block Patterns overlay a distinct shape on each colour, including every Prism shade. Toggle in Settings.

PREMIUM UNLOCK (one-time, non-consumable)
• Removes interstitial and rewarded ads
• Adds one free revive per game
• Records lifetime statistics
• Unlocks Mirror Mode
• Unlocks Prism Mode

FREE PLAY
The free version is ad-supported. Watch a rewarded advert to try Prism Mode for one game, or to use the same extras Premium provides: your choice, no required purchase.

Bug reports and feature requests: refractor.games@protonmail.com