Stackdom: Color Sort Puzzle

Sort colors, match blocks and build every stack before time runs out!
Stackdom is a satisfying color sorting puzzle where every block matters. Move colorful blocks around the board, find matching colors and stack them together to solve each level.
But there’s a twist: stacked blocks never disappear.
Every block of the same color must eventually become part of one complete stack, ordered from largest to smallest. Plan your moves carefully, manage the available space and finish every stack before the timer reaches zero.
Easy to understand. Surprisingly tricky to master.
SORT COLOR BLOCKS
Each level begins with colorful blocks spread across the board.
Move blocks into position, match the same colors and start building stacks. As the board fills up, you'll need to decide which blocks to move first and where to leave enough space for your next move.
This isn't just a simple color match. Stackdom combines color sorting, block matching and spatial puzzle solving into one quick challenge.
MATCH COLORS & BUILD STACKS
Matching color blocks belong together, but they also need to be stacked in the correct size order.
Build from the largest block at the bottom to the smallest block at the top.
Once blocks are stacked, they stay stacked. Nothing disappears to free the board for you, so every move changes the space available for the rest of the level.
Can you find the right order?
SOLVE BLOCK MATCHING PUZZLES
Every level is a new block matching puzzle.
Some matches are obvious. Others require you to move several blocks, create room and plan ahead before you can complete a stack.
As levels become more difficult, you'll face:
- More colors to sort
- Taller stacks to complete
- Less empty space
- More block shapes and sizes
- Tougher positioning decisions
- Tighter time limits
The challenge comes from finding the smartest way to organize the whole board.
A COLOR MATCHING PUZZLE WITH A TWIST
In Stackdom, matching blocks don't vanish.
Instead, every successful match helps create a permanent stack that remains on the board. That means completing one color can make the puzzle easier — or take away space you needed somewhere else.
Sort color blocks carefully and think about the whole board, not just your next move.
BEAT THE CLOCK
Stackdom is also a timed block puzzle.
You know what needs to be done: sort the colors, match the blocks and complete every stack.
The question is whether you can work out the solution before time runs out.
Early levels give you room to learn the rules, while harder levels require faster decisions, better planning and clever use of limited space.
SATISFYING, SIMPLE & CHALLENGING
Stackdom is built around short puzzle levels that are easy to pick up whenever you have a few minutes.
- SORT colorful blocks
- MATCH blocks of the same color
- STACK blocks from largest to smallest
- PLAN moves around limited board space
- SOLVE timed color sorting puzzles
- COMPLETE every stack to win
- MASTER increasingly tricky levels
If you enjoy color sorting puzzles, block matching puzzles, color matching puzzles and satisfying spatial challenges, Stackdom gives the familiar sorting formula a different kind of twist.
Sort the colors. Build the stacks. Beat the clock.
Can you stack them all?

Stackdom is free to download and includes optional in-app purchases.
In-app purchases are optional and are not required to access the core game. Pricing and availability may vary by region. You can manage or disable in-app purchases through your device or store account settings.