Colony Flow! Level 990 Walkthrough: Pathing and Clearing Guide

To clear Level 990 in Colony Flow!, release the unobstructed outer perimeter ant lines before interacting with the congested center clusters. Releasing central paths early blocks grid transitions and locks active queues. Clearing the board from the outside in creates lateral buffer space so inner ant lines can travel cleanly into their matching collection targets.

Clear Perimeter Lanes First

Before tapping any nodes, inspect the grid to identify which tracks have direct, open runs to the drop points. The perimeter features shorter, low-friction lines that do not cross intersecting paths.

1. Locate open edges: Find outer ant lines whose direct path to an exit jar is entirely unblocked.
2. Release edge paths sequentially: Tap and release these outer lines one by one.
3. Allow animations to complete: Wait for departing ants to finish walking into their targets before tapping the next node. Rushing inputs can cause trailing units to clip active junction points and stall subsequent movements.

Emptying the border tiles creates space along the grid margins, allowing the longer inner columns to maneuver without colliding at central junctions.

Resolve Chokepoint Intersections

Level 990 features tight chokepoints where two differently colored lines contest a single crossing tile. If the wrong line moves first, both queues can freeze indefinitely.

When two active tracks converge on the same grid tile:

• Drain the larger queue first: Always release the line containing more ants. Emptying the deeper stack relieves maximum grid pressure and opens access to hidden paths behind it.
• Confirm junction clearance: Ensure the final ant of an active line has crossed through the intersection tile before triggering the competing color. A single unit resting on a shared junction prevents other lines from crossing.

Untangle the Central Cluster and Finish

Once the perimeter and primary intersection blockers are removed, address the dense cluster at the center of the board.

1. Work from outer layers inward: Target the outermost ring of the central cluster first. These units can now utilize the empty perimeter tiles to reach their exits.
2. Trace trajectories: Before triggering an interior node, trace its full movement line to verify that every intervening tile between the start point and the goal is completely vacant.
3. Clear remaining segments: With the central jam cleared, send any remaining short ant groups directly into their corresponding colored goals to finish the stage.