Here is the full list of all 20 Game Collector achievements.
Collect 10 games
Collect 20 games
Collect all games available
Finish the game in Intermediate or a higher difficulty
Finish the game in Advanced Mode
Finish the game without replying to any mails
Finish the game before 22 September 2023 (In-game date)
Spot the cat
Get a game for free
Spot the 50's pink German car
Become a millionnaire
Answer a fishy mail but don't get scammed
As a janitor, manage to get paid twice in a row
Manage to win the taxi driver minigame 10 times in a row without crashing
Write a total of 100 pieces of code as a programmer
As a programmer, manage to get paid 4 times in a row
Manage to fail the "Don't press anything" minigame
Ignore the mail of someone who only wants to play a game
Work with less than 30 Fun
Earn all other achievements