Colony Flow! Level 90 Walkthrough and Cube Sorting Guide

To clear Level 90 in Colony Flow!, work from the outer edges inward while preserving at least 30% of your total move allowance for the final cleanup phase. The main cause of failure on this stage is grid overflow, which happens when haphazard clearing leaves scattered colors without adjacent matching paths.

Routing and Clearing Order

Clearing Level 90 requires establishing unobstructed lines of sight between matching colored cubes so worker ants can traverse the board without getting blocked.

1. Scan the board perimeter: Start by clearing matching cube clusters along the outer edges of the grid. Clearing the edges early maintains movement flexibility across the board.
2. Clear central anchor cubes: Once perimeter paths are open, focus on central anchor cubes. Removing these key blocks opens up sightlines across multiple quadrants and clears paths to isolated corners.
3. Form continuous lines: Route long, continuous paths that connect matching colors separated by open space. Connecting larger groups in single moves saves total turns compared to clearing isolated pairs.
4. Clean up remaining scattered cubes: Use your reserved moves during the final phase to clear small, isolated cubes once primary path obstacles have been removed.

Managing Dead Ends and Grid Overflow

Grid overflow occurs when one color is targeted exclusively, leaving the remaining colors disorganized across the board without valid path options. Maintain steady board state with these checks:

• Identify majority colors: Target the color with the most visible cubes to free up board space quickly.
• Work in quadrants: Divide the board mentally into four sections to prevent isolated pockets of unmatched colors.
• Stop at dead ends: If a path leads toward a barrier tile or corner without an exit, leave the cluster temporarily and clear an anchor cube elsewhere to create an alternative route.
• Verify connections: Confirm every remaining color has at least one valid path option before executing your move.