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