Here is the full list of all 23 Scribbleman Army achievements.
Kill a beetle.
Find Jim.
Build a dating restaurant.
Get an archer.
Get an artificer.
Get a base level 8.
Get a breeder.
Get a chef.
Worship The Click.
Have 1000 coins
Get a diamond.
Get a doctor.
Get a farmer
Have 1000 foods
Replant a forest.
Go deeper.
Remove everything from a level.
Get a pterodactyl.
Get a student of magic.
Get an ultimate magic wand.
Have 15 warriors.
Get a witch.
Reach level 50. The game developer stopped there, good luck to the brave who would continue.