Connect the colors, clear the board.
A calm brain teaser for grown-ups.

Tap groups of connected same-color blocks to clear them. Every block you clear flows into the core at the center and changes its color. Using the core's color wisely is the key to a Perfect. No timer and no rush — think it through at your own pace. No sign-up and no in-app purchases, so you can start right away.

Get it on Google Play

Android / Free (contains ads, no in-app purchases)

Core Flux title screen

How to play

  1. 1

    Tap 2+ connected same-color blocks

    Tap connected blocks of the same color to clear them all at once.

  2. 2

    Cleared blocks head to the core

    Cleared blocks gather at the center tile and change its color.

  3. 3

    Clear 95% to win

    Clear 95% or more of the board to complete the stage. Clear it all for a "PERFECT" bonus.

Features

Perfect clear screen

Go for the Perfect

Clear every block for a Perfect bonus, then try to keep the streak going.

Bonus stage screen

Bonus stages

Every 5 stages, a special stage of only gold, silver and bronze blocks appears. Score is doubled.

Gravity Block screen

Gravity Blocks

From stage 31. Tap to cycle its color; once pulled into the core, it sucks in the blocks around it. The area it clears is outlined on the board.

Compact stage screen

Compact stages

Get a Perfect on the max 11×11 board and the next stage shrinks — down to 7×7 for efficient scores.

Easy mode screen

Easy mode

Boards up to 7×7 with at most 4 colors, and 90% clears the stage. Great for a relaxed session.

Screen with color numbers shown

Color numbers (color-blind support)

Show a number on each block matching its color, so colors are easy to tell apart.

A brain teaser at your own pace

The rules are simple, but where you start makes all the difference. Think ahead, plan, and decide — a quick mental workout that fits into any spare moment.

Think a few moves ahead

Which group should go first so a bigger one forms next? The more you plan your order, the higher you score.

Plan the core's color

Every block you clear changes the core's color. Decide which color to gather there and work backward from the goal.

Know when to retry

Undo your last move, or reshuffle right at the start? Choosing when to spend your limited reshuffles is part of the skill.

Stages take seconds

Each stage takes just tens of seconds — perfect for a commute or a short break.

Relaxed and easy on the eyes

  • No time limit: Nothing rushes you. Take your time and think it through.
  • Easy mode: Boards up to 7×7 with at most 4 colors. Bigger blocks are easier to see, and 90% clears the stage.
  • Color numbers: Show a number on each block so colors are easy to tell apart.
  • Just tap: Tap a group of same-color blocks. No complicated controls.
  • Welcoming for everyone: Great if you're coming back to puzzles after a while, and for seniors too.

FAQ

Is it free?

Yes, the whole game is free to play. It shows ads, but there are no in-app purchases and no sign-up.

Is it a good brain teaser?

You think ahead and plan the order of your moves as you play, so it makes a fun mental workout. There's no time limit, so you can play at your own pace.

Can I recommend it to older family members?

Yes. You only need to tap, and there's no time limit. Easy mode uses smaller boards and fewer colors, so it's easy to get started even if you're new to puzzles.

I can't clear the stages.

Try Easy mode. You can also reshuffle the board right at the start of a stage, or undo your last move.

I have trouble telling the colors apart.

Turn on color numbers with "TEXT ON/OFF" on the title screen, or the "1" button at the bottom of the game screen.

Can I pick up where I left off?

Yes. Your progress is saved automatically and you can resume with Continue. Data is stored only on your device.

Play free now

No timer, no rush. A few minutes on your commute, or a slow afternoon on the weekend.

Get it on Google Play