ABILITY ACHIEVEMENT
Efficiency Expert Achievement
Use Collect Ducks once to collect 15 ducks. The ability alone is not enough: you need more than 15 free inventory slots and a dense group with at least 15 valid matching ducks still available.
Collect 15 ducks in one use of Collect Ducks.
The condition is displayed by Steam. The method below separates the exact requirement from route advice.
Prepare before attempting it
- Upgrade inventory comfortably beyond 15 slots.
- Leave a high-copy duck group unsorted until the setup is ready.
- Empty enough inventory space before activating the ability.
- Hold or target a duck whose matching copies are densely grouped nearby.
Step-by-step method
- Choose a category or repeated design with many copies left on the floor.
- Clear unrelated ducks from your inventory so the cap cannot stop the pull.
- Stand beside the dense matching group.
- Use Collect Ducks exactly once and let the collection finish.
- If fewer than 15 arrive, rebuild the group and verify capacity before retrying.
Mistakes that waste the attempt
- Trying with a small early-game inventory.
- Using the ability on a nearly completed set with fewer than 15 copies left.
- Counting total inventory rather than free slots.
- Triggering multiple smaller uses; the condition requires one use.
Continue with the related guide
Sources & evidence
What this answer is based on
- Steam Global Achievements ↗Official achievement names and visible conditions.
- Independent 20-achievement walkthrough ↗Route advice and third-party documentation for hidden conditions.