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