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.
Listen to all Inhuman League tracks.
You discovered the well's secret...
Wait... Did you teach him a trick or did he just trick you?
You examined all of Nanny Dooley's stash.
Poke McQueen 50 times.
You found the pop-up image in each case.
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
You helped find true love.
You pet all the animals in the game.
You ruined the demon's downtime.
You found all the flashbacks of Dooley's darkside adventures.
Completed Case 4: Funfair Dismissal
You broke the clown car.
You interrupted a scary yet romantic dinner.
Completed Case 3: Druid's Delight
Completed Case 2: Twilight Years
Drain Nanny's supply of sandwiches and tea.
Completed Case 1: Missing, Presumed Darkside
Complete Case 9: Tales from the Darkside.