Colony Flow Level 18 Walkthrough

Level 18 of Colony Flow uses a 6x6 grid with five colors — the first level with five distinct colonies. Five colors fills the board almost completely, leaving almost no empty cells. Route the two shortest paths first, then the medium ones, then the longest. Every move counts. If you leave one cell empty after finishing, you've made a routing error — restart and try again with a different sequence. Level 18 is a big step up in difficulty.