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