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