Here is the full list of all 53 Gamedec achievements.
The base game contains 52 achievements, and there is 1 DLC pack containing 1 achievements.
Use the brainfix on yourself.
Gain Trolls respect in the bar.
Make Ken a pretty straightforward proposal.
Help the Bandit escape in Harvest Time.
Get 5000 Harvest Time's coins.
Surprise Jester in the theater.
Complete all the fetchquests from Troll King.
Agree with the simulation owners
Lock 3 characters in the loop in Paradise Beach.
Get to the Paradise Beach.
Find Bliss in Axis Mundi.
Visit 15 different locations in Axis Mundi.
Find the Panda's diorama in Axis Mundi.
Unlock all codebreaker modes.
Find Morty the robot in Axis Mundi.
Find the Harvest Time rift.
Break out of the prison.
Create 5 items in the Forge in Knight's Code.
Gather 3 Poteto Gomuins in Knight's Code.
Get to the Umbra's House.
Create Ken's V-Ghost from his psychoscan.
Get the maximum profession tier in at least two paths in one playthrough.
Gain Sleeves respect in the bar.
Explore all death hypotheses in Fallen Hero.
Search all the trash bins in Fallen Hero.
Meet the diginet in the street.
Obtain the maximum profession tier.
Win a gun duel with the sheriff.
Use your deduction at least 15 times.
Listen to the 3 tales from the Rusty Ed.
Find two ways to reach the graveyard.
Get a gun in Harvest Time.
Fully expand your farm in Harvest Time.
Reach the Farm Level 5 in Harvest Time.
Get 50 information for deduction.
Help Fredo in Like Father Like Son.
Help Ramon to force another player out from Twisted & Perverted.
Get 20 aspects.
Help Starlett get out of limbo.
Complete the solitaire in Haggis' office.
Scratch Haggis' golden frame.
Get 50 pieces of information for the codex.
Find all the clues written on the boards.
Order a whiskey at Yet's bar.
Use the cat go through the gate.
Do 5 quests for the Clan Masters in Knight's Code.
Collect 3 memories of Ken.
Collect 10 iron.
Help Rhonda find her son.
Gather a team of at least 3 people.
Destroy the simulation
Escape from the simulation.