Every achievement in Maytroid. I swear it's a nice game too, ranked by how many Steam players have unlocked it. Global completion rates from Steam, refreshed daily.

Miss Ao, I don't feel so good
Beat the final boss
6.1%

Anything is possible
Buy all the upgrades
7.6%

Hit or miss
Obtain second ability
7.9%

Shadow slayer the anime
Obtain third ability
8.5%

Scientific research
Unlock all the pictures
9.8%

Can we beat S-series?
Obtain first ability
17%

A man of culture
Enter the gallery
32%

I'm already May
Enter the shop
35%

Souls-like
Lose yourself
39%

First blood, GG
Kill your first enemy
42%

A certain unscientific realm
Enter the realm
42%
Percentages are Steam's global unlock rates across all players who own Maytroid. I swear it's a nice game too, refreshed daily. Under 5% is marked in the lit blue.