Gameplay guide

Colony Flow Level 21 — How to Play

Connect every pair of matching colored dots with a continuous pipe. Tap and drag from one dot to its matching partner to lay a path between them — once every color is connected and the whole board is filled, the level is complete. Plan your routes so each color can reach its partner without crossing another pipe.

Level 21 tip: Connect colors that sit close together first to open up space for longer routes.

Stuck on Level 21? Press play above and follow the move order to clear the board. Looking for a different board? Jump back to the full Colony Flow! level list or pick the next level below.