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