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