The Rafter Five Add-on for Let's Play! Oink Games has 5 achievements.
Placed all of your treasure chests and won.
Caused other players to drop 3 or more of your treasure chests.
Didn't drop any treasure chests and only dropped lumbers or rafters.
Placed 10 or more treasure chests in solo mode.
Placed 30 or more treasure chests in solo mode.