Are the puzzles free?

Yes, all puzzle levels are completely free — no subscription or download required.

How many levels are there?

The number of levels varies by game. Many puzzle games include 20–100+ levels of increasing difficulty.

Can kids play Stack Sorting?

Yes, puzzle games are suitable for all ages. The logic-based gameplay makes them great for kids and adults alike.

Some levels are timed, others are relaxed. Check the game's top bar — a clock icon means there's a time limit.

I'm stuck on a level — what should I do?

Most puzzle games include a hint button or a skip option after a few failed attempts. Take a break and return with fresh eyes if the hint doesn't help.

Stack Sorting

game.aboutGame

Welcome to Stack Sorting! Your task is to organize colorful cylinders by clicking on stacks. Move the topmost cylinder to an empty stack or one with a matching top cylinder. Navigate through Easy Mode with plenty of stacks and time, or challenge yourself in Hard Mode with fewer stacks. Complete all levels within the time limit to emerge victorious!