Full list of all 30 The Darkside Detective: A Fumble in the Dark achievements. It takes around 8-10 hours to unlock all of the achievements in the base game.
The base game contains 23 achievements, and there are 3 DLC packs containing 7 achievements.
You found the pop-up image in each case.
Listen to all Inhuman League tracks.
You helped find true love.
You ruined the demon's downtime.
You interrupted a scary yet romantic dinner.
You broke the clown car.
You discovered the well's secret...
Drain Nanny's supply of sandwiches and tea.
You found all the flashbacks of Dooley's darkside adventures.
You examined all of Nanny Dooley's stash.
You pet all the animals in the game.
Poke McQueen 50 times.
Ask the masters for their worldly wisdom.
You spotted what Gary was up to on the switchboard roof.
Credits watched, Division reinstated.
Completed Case 6: Class of the Titans
Dooley's a cool cat.
Completed Case 5: Royal Fumble
Completed Case 4: Funfair Dismissal
Completed Case 3: Druid's Delight
Wait... Did you teach him a trick or did he just trick you?
Completed Case 2: Twilight Years
Completed Case 1: Missing, Presumed Darkside
Complete Case 9: Tales from the Darkside.