Here is the full list of all 34 PEG achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Clear 30 daily levels total.
Obtain all achievements.
Move 3000 PEG pieces.
Clear 20 daily levels total.
Clear 10 daily levels total.
Move 2500 PEG pieces.
Clear a daily level.
Clear all CROSS levels.
Move 2000 PEG pieces.
Clear a CROSS level.
Clear all HEXAGON levels.
Unlock the CROSS board.
Move 1500 PEG pieces.
Unlock daily levels.
Clear an HEXAGON level.
Clear all SQUARE board levels.
Clear all CIRCLE levels.
Clear all DOUBLE DIAMOND levels.
Unlock the HEXAGON board.
Clear all STAR board levels.
Move 1000 PEG pieces.
Clear a DOUBLE DIAMOND level.
Unlock the DOUBLE DIAMOND board.
Move 500 PEG pieces.
Beat the 7th CIRCLE level while only moving the red PEG piece ONCE.
Clear a CIRCLE level.
Unlock the CIRCLE board.
Clear a SQUARE level.
Unlock the SQUARE board.
Clear a STAR board level.
Unlock the STAR board.
Clear all TRIANGLE board levels.
Clear a TRIANGLE level.
Complete the tutorial.