Here is the full list of all 24 Death's Door achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Trigger the metal detector without detecting a threat
100% Complete the game
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All seeds collected and planted
Meet with 3 owls
Take a midnight stroll with Jefferson
Collect all shiny things
Beat the game
Beat the game only ever using an umbrella as your melee weapon
Listen to Barb's magnum opus
Find all shrines
Upgrade the arrow ability
Access Pothead's secret garden
Purchase 12 stat upgrades
Max out any of the 4 stats
Upgrade the fire ability
Collect all weapons
Upgrade the hookshot ability
Upgrade the bomb ability
Gain a devoted fan
Accept Jefferson's Soup
Feed the Frog King an explosive treat
Set Grandma's pot on fire
Have a gang of 10+ forest spirits follow you