Here is the full list of all 29 The Wild at Heart achievements.
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.
Learn about every area of the Deep Woods from Toothpicks.
Take a moment of thoughtful meditation by the waterfall in Heartlands.
Purchase every Gustbuster upgrade.
Purchase every Warden's Way upgrade.
Completely fill out the Grove Trove, finding every last missing treasure.
Safely return all of Litterbox's cats to the Grove.
Purchase all health upgrades.
Complete every beastie bounty from Toothpicks.
Stay up through the night until daybreak, outside of The Grove.
Break a crystal with Barblings without throwing them.
Listen to all the juicy gossip that the Twins have to dish.
Kick an item directly into the Stash Box.
Hear all of Scrap Heap's tips and tricks.
Fully reveal the maps for every known area of the Deep Woods.
Purchase every Spriteling Cap upgrade.
Purchase every Bag Slot upgrade.
Craft every type of Tonic.
Befriend the 5 main Spriteling types.
Recall all wayward Greenshields to The Grove, uncovering the details of their missions.
Make a trade with Rubbish.
Craft every type of Meal.
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.