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