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