Here is the full list of all 29 The Wild at Heart achievements.
Find all the Lost Journal Pages missing from "Book".
Purchase every Gustbuster upgrade.
Learn about every area of the Deep Woods from Toothpicks.
Complete every beastie bounty from Toothpicks.
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.
Defeat The Never.
Open the way to Umbral Lethea, using the power of the Greenshield Artifacts.
Fully reveal the maps for every known area of the Deep Woods.
Craft every type of Tonic.
Befriend the 5 main Spriteling types.
Purchase every Bag Slot upgrade.
Purchase every Spriteling Cap upgrade.
Listen to all the juicy gossip that the Twins have to dish.
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.
Craft every type of Meal.
Take a moment of thoughtful meditation by the waterfall in Heartlands.
Make a trade with Rubbish.
Get 5 or more Spritelings frozen in ice simultaneously.
Recall all wayward Greenshields to The Grove, uncovering the details of their missions.
Build your first camp.
Stay up through the night until daybreak, outside of The Grove.
Reach The Grove, the home of the Greenshields.
Craft your first item.
Successfully run away from home.