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