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