Here is the full list of all 28 Mosaic achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Reach level 75
Gather 1M Blops!
Collect more than 100k blops in under 1 minute
Spend more than 100k blops in under 1 minute
Upgrade BlipVault to level 10
Upgrade Autoblip speed to level 10
Reach level 50
Gather 100k Blops!
Spend more than 10k blops in under 1 minute
Unlock Autoblip and BlipVault
Keep full vault for more than ten minutes of continuous play
Gather 10.000 Blops!
Reach level 25
Upgrade Blip-button to level 12
Upgrade Blip-button to level 11
Upgrade Blip button to level 10
Reach level 10
Gather 1000 Blops!
Upgrade Blip button to level 2
Gather 100 Blops!
Reach level 2
Gather 1 Blop!
Gather 1B Blops!
Gather 1T Blops!
Prestige once!
Prestige five times!
Prestige ten times!
Blip for 1 hour continuously