Here is the full list of all 35 Microtransaction Simulator achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Is this a bug?
Don't even try it
This can't be a mistake
Harder than it looks
Mania
Lucid once
A small loan of 1 million dollars
It's a secret to everybody
Yum
Past the point of no return
Some people graduate but they still stupid
Old habits die hard
Open 100 packs
...
You dug a hole
Open 50 packs
Unrelated
Get a fuzz
Get a turquoise
Take a look at me now
yeah
Get a green
Get a red
2017
Get a purple
Get a blue
Sometimes there is a free lunch.
Get a brown
Get a white
literally idle the game for 4 hours. Stay at home and don't spread the coronavirus.