Here is the full list of all 51 Bee Simulator achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Find all the little bees in the park
Complete all the spider web challenges
Complete all challenges
Complete all the fight challenges
Find the lawsuit notice
Enter found password on the computer
Find a hidden message
Complete the Bully challenge 3 times
Find the easter egg
Get all the pollen from the flower lady 15 times
Report to the Queen about animals
Feed the little bees
Switch the light in the street lamp
Collect pollen from 1000 flowers
Interact 50 times with the environment
Change music in a boombox
Unlock a 3D animal
Complete all the dance challenges
Drive the mole away
Complete all the chase challenges
Take control of the drone
Feast on human food 30 times
Defeat the fly gang leader
Sting the bear
Find the wise-bee's flower
Fly a total of 10 kilometres
Help the mother squirrel
Find a guardian for the little squirrel
Collect pollen from the giant water lily
Help the ants across the water
Destroy 20 balloons
Unlock new bee skin
Dance with a bee from another species
Complete the main story
Find the new hive
Uncover Anna's web of conspiracy
Discover what a drone does
Be a bee hero
Unlock the Cave
Get in trouble
Gather pollen for the winter
Defeat Harry the Hornet in single combat
Unlock an animal statue
Unlock the Trophy Room
Bring the bee home
Finish The Tutorial
Activate Beetro Mode
Use bee vision
Collect pollen from 3000 flowers
Unlock all animal statues
Collect ALL the other achievements