Here is the full list of all 35 Idle Pins achievements.
Overcharge 1,000,000
Play for 1 month
Find 50 Slimes
Discover 50 different Pins
Play for 10 days
Join dev's streaming
Tune 10 different Pins
Find 10 Slimes
Overcharge 100,000 enemies
Find a Slime
Tune your first Pin
Play for 1 day
Redeem a code
Overcharge 1,000 enemies
Discover 10 different Pins
Play for 1 hour
Finish the tutorial
Overcharge 10,000,000 enemies
Overcharge 50,000,000 enemies
Overcharge 100 Leaders
Overcharge 1,000 Leaders
Overcharge 10,000 Leaders
Discover 140 different Pins
Tune 30 different Pins
Tune 60 different Pins
Get 10 S+ Rank tunes
Get 50 S+ Rank tunes
Get 200 S+ Rank tunes
Get 400 S+ Rank tunes
Get 800 S+ Rank tunes
Play for 6 months
Unlock The Tower
is Arkshija real?
Practice some Alchemy
Max autofuse Upgrades