Here is the full list of all 105 Bum Simulator achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Attempt to interrupt the villain's monologue.
Complete the main story.
Solve the EvilWay maze.
Attain level 30.
Place antennas in three different bases.
Charge the battery.
Earn 50 respect.
Find all feathers.
Collect all blueprints.
Complete all Dr. East's side quests.
Complete all Mr. Jello's side quests.
Complete a Mr. Jello's side quest.
Blow up.
Complete a Dr. East's side quest.
Earn 500$.
Apply a costume to your pigeon.
Collect all costumes for your pigeons.
"Pick" a lock.
Sleep on a bench for at least 8 hours.
Catch 10 things in a single Pigeonado.
Harvest a sustainable homegrown plant.
Pawn 0.01$ worth of items.
Smelt copper for the first time.
Roast a vegetable or a fruit.
Get electrocuted.
Destroy the armor of a Bug Knight with an exploding projectile.
One-shot a Bug Shaman with an electrifying projectile.
Recruit a Creep in your base.
Earn 100$.
Throw a Bug into the ocean.
Defend successfully from a raid.
Decide to defend your base.
Discover the Green Goo Vodka recipe.
Discover the Flash Bourbon recipe.
Discover the Clown Royale recipe.
Cook the Bum's Special.
Produce a pack of cigarettes.
Pay off a bug raid.
Acquire resources from a minion sent on a mission.
Create paper for the first time.
Die of dehydration.
Die of hunger.
Harvest any homegrown plant.
Accelerate plant growth with guano.
Paid (with) your respects.
Hang a tribute for your best friend in your base.
Take a shower.
Urinate on your own fridge.
Smelt aluminum for the first time.
Become a five-star player.
Fall from too high.
Urinate on a puking person.
Drown.
Get into a fatal traffic accident.
Try American cuisine.
Support John's business.
Support Richard's business.
Try Italian cuisine.
Transport a passenger on Carl.
Get a grade of F when drawing.
Obtain a free product from a vending machine.
Buy a drink or snack from a vending machine.
Interact with a phone booth.
Fill Carl's inventory.
Try to get money from the BPD.
Achieve a grade of A when drawing.
Consume your first find.
Learn to work for change.
Get Bugzy his due.
Learn about Shuriken Pigeon.
Meet the Pigeon Lady.
Deliver Mr. Jello's package.
Earn some respect.
Meet the good doctor.
Complete the presentation of Fus Doh Beer.
Destroy EvilWay's surveillance equipment.
Finish the investigation of the EvilWay secret EvilLab.
Find the Safehouse.
Knock a corrupt politician down a peg.
Prepare Hot Dogs for beachgoers.
Feed Little Bro.
Retrieve the EvilWay security key card.
"Win" the fight on the rooftop.
Earn 10 respect.
Liberate another base location.
Liberate all base locations.
Find a feather.
Find 10 feathers.
Find 25 feathers.
Collect a blueprint.
Collect 10 blueprints.
Level up.
Attain level 8.
Attain level 15.
Earn 25$.
Complete one shooting gallery side quest.
Complete all shooting gallery side quests.
Complete a Richman's side quest.
Complete all Richman's side quests.
Complete a Trixie's side quest.
Complete all Trixie's side quests.
Fully upgrade Pigeon Shuriken.
Fully upgrade Pigeonado.
Fully upgrade Peckers.
Listen to the whole main menu song.