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