Efficiency Expert Achievement

Efficiency Expert is an achievement in Sort Them Ducks. You’ll need to have bought the auto-collect ducks upgrade and have enough space in your inventory to bring in 15 ducks at once.

Collect 15 ducks with a single collect ducks ability use.

In order to obtain this achievement, you’ll first need to spend $150 in the upgrade machine and buy the auto-collect ducks ability. Next, you’ll need at least sixteen spaces in your inventory. Once you have those two things, pick up a duck from a nearly empty shelf and use the auto-collect ability to pull in at least 15 ducks of the same type.

Uh, make sure your inventory is empty before doing this, of course, aside from the one duck your holding.

Doing so should give you the achievement, but also, I used this ability like it was my lifeline whenever it went off cooldown. It is super helpful if you’re trying to finish the game in under four hours for the achievement No Time to Waddle.