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