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