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