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