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