Here is the full list of all 29 The Wild at Heart achievements.
Purchase every Gustbuster upgrade.
Complete every beastie bounty from Toothpicks.
Purchase all health upgrades.
Completely fill out the Grove Trove, finding every last missing treasure.
Purchase every Warden's Way upgrade.
Find all the Lost Journal Pages missing from "Book".
Learn about every area of the Deep Woods from Toothpicks.
Listen to all the juicy gossip that the Twins have to dish.
Hear all of Scrap Heap's tips and tricks.
Purchase every Bag Slot upgrade.
Fully reveal the maps for every known area of the Deep Woods.
Safely return all of Litterbox's cats to the Grove.
Break a crystal with Barblings without throwing them.
Defeat The Never.
Open the way to Umbral Lethea, using the power of the Greenshield Artifacts.
Purchase every Spriteling Cap upgrade.
Befriend the 5 main Spriteling types.
Make a trade with Rubbish.
Craft every type of Tonic.
Get 5 or more Spritelings frozen in ice simultaneously.
Recall all wayward Greenshields to The Grove, uncovering the details of their missions.
Stay up through the night until daybreak, outside of The Grove.
Craft every type of Meal.
Craft your first item.
Take a moment of thoughtful meditation by the waterfall in Heartlands.
Build your first camp.
Reach The Grove, the home of the Greenshields.
Kick an item directly into the Stash Box.
Successfully run away from home.