According to my Research
Not unlocked yet
Out of Thin Air
Not unlocked yet
Sleepwalker's Summit
Not unlocked yetScale the Tower for the first time
Passing the Reins
Not unlocked yetFinish Champion's story
Compounding Interest
Not unlocked yetAcquire 900 gold
Dynamo
Not unlocked yetDestroy 10 enemies with a single thunderclap
Hook, Line, and Sinker
Not unlocked yetFinish Researcher #638's story
Fetch Quest
Not unlocked yetFinish Frido's story
Where the Heart is
Not unlocked yetFinish Germh's story
Up, Up, and Away
Not unlocked yetJump 5 times without touching the ground or walls
Slick as a Whistle
Not unlocked yetClear a boss without taking any damage
Safe!
Not unlocked yetClear a climb without taking any damage
I Ain't 'Fraid of No Ghost
Not unlocked yetClear the Living Armor
Ranidaphobia
Not unlocked yetClear the Basilisk
Renovations Underway
Not unlocked yetDamage blocks from underneath 20 times in a single level
Roll Me
Not unlocked yetReroll a climb reward 5 times.
Spring Cleaning
Not unlocked yetReduce your library to 4 pieces or fewer
Watch your Head
Not unlocked yetCrush yourself with falling pieces 5 times in one room
Why'd it Have to be Snakes
Not unlocked yetClear the Gyrwurm
Old Fashioned
Not unlocked yetFinish a run with a library identical to your starting library