Colony Flow Level 321 Answer Key, Walkthrough & Solution
Level 321 Video Walkthrough
Watch the full clear first, then use the written checkpoints below for each move. Want to practice first? Play Colony Flow free in your browser โ
Level-specific solution
Colony Flow Level 321: yellow robot face with a blue visor
Opening move: Send black blocks to clear the bottom corners and open paths up the sides. Final move: Send your massive yellow blocks to clear the remaining background tiles and finish the level.
Board identity
yellow robot face with a blue visor
The recorded palette is yellow, blue, black, white. Use the screenshot to confirm the placement of these colors before starting the first move.
Step-by-step solution
Ordered moves for the yellow robot face with a blue visor
Send black blocks to clear the bottom corners and open paths up the sides
Send black blocks to dismantle the thick dark line running across the top
Select a white block to eliminate the exposed white horizontal stripe
Queue a blue block to erase the blue stripe sitting just below the white section
Feed blue ants to the central Hungry Door to satisfy its count and open it
Move your remaining black blocks to clean up the dark details hidden inside the open doors
Send your massive yellow blocks to clear the remaining background tiles and finish the level
Second-source check
Opening and finish confirmed separately
Opening: Send black blocks to clear the bottom corners and open paths up the sides. Finish: Send your massive yellow blocks to clear the remaining background tiles and finish the level. Its 7board-specific moves are listed above; the picture name and palette come from the other reference page.
Sources reviewed: primary level guide and independent cross-check.

๐ Written practice guide (web version)board preview, color breakdown & loading order for the playable web level
Board Preview
What You're Up Against
Level 321 paints Owl with 140 tiles across 4 colors, split into 5 cubes in the tray. You have 5 waiting slots and two nest holes.
- Lime: 60 tiles โ cubes of 39, 21
- Orange: 40 tiles โ cubes of 40
- Purple: 38 tiles โ cubes of 38
- Black: 2 tiles โ cubes of 2
Step-by-Step Solution
This loading order was computed from the web level layout with a reachability-first strategy: always feed the ants colors they can actually reach, and never let all 5 slots fill with blocked colors.
Load the cubes in this order, letting the ants work between picks. Unless noted, a cube's tiles are fully reachable when you send it.
- Send the Lime 21 cube.
- Send the Lime 39 cube. Only ~24 of its 39 tiles are open at this point โ park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Purple 38 cube. Only ~16 of its 38 tiles are open at this point โ park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Black 2 cube.
- Send the Orange 40 cube. Only ~18 of its 40 tiles are open at this point โ park it in a slot and let the surrounding colors clear the rest of the way.
Finish without boosters for 3 stars and bonus coins. If the board jams anyway, a Shuffle or Vacuum booster is the cheapest way out.