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