Full list of all 85 Viscera Cleanup Detail achievements. It takes around 50-60 hours to unlock all of the achievements in the base game on Windows.
The base game contains 65 achievements, and there are 2 DLC packs containing 20 achievements.
Complete Core Sample Level
Complete Pestilent Penitentiary Level
Complete Penumbra Level
Complete Uprinsing Level
Speedrun a map with at least %25 par time to spare
Transfer a Goo-Jar to another work-site and infect something
Receive 12 Employee of the Month awards
Complete All major Official Levels
Complete Incubation Emergency Level
Take the Big Banger Supernova out of Unearthly Excavation and into another work-site and turn it on
Complete Unearthly Excavation Level
Complete Gravity Drive Level
Fry 500 items with the plasma welder
Receive a total of 100 helping hands from the Slosh-O-Matic
Track over 20,000 footprints
Suffer the wrath of the Bin machine 75 times
Pick up 1000 pieces of trash
Complete Overgrowth Level
Complete Revolutionary Robotics Level
Pick up 800 casings
Complete Caduceus Level
Collect a head from each species in cleaned levels and take them to your office
Find all the unique and hidden collectibles and return them to your office
Throw 100 items into sand traps
Unlock Bob's super secret secret stash room
Find Bob
Use the Sniffer for a total of 2 hours
Complete Cryogenesis Level
Collect the two million dollars of cold hard cash from the Shadow Warrior level all at once and bring it back to your office
Find all the hidden painted eggs and return them to your office
Complete Evil Science Level
Complete Paintenance Level
Spill 100 dirty buckets
Complete Unrefinery Level
Completely clean the entire Shadow Warrior temple level
Complete Hydroponic Hell Level
Incinerate 2000 items
Complete Athena's Wrath Level
Completely clean Santa's Workshop without breaking any Christmas items and clock off
Restock a total of 50 medkits over your cleaning career by punching out of levels with medkits
Turn off the Big Banger while it's playing loudly in zero-gravity during a Solo game
Blow up a fellow worker
Take a lit flare from a fellow Janitor
Get eaten
Incinerate 50 Santa hats, the symbol of everything you hate
Mop up 10,000 splats
Complete Waste Disposal Level
Complete Frostbite Level
Get the Employee of the Month reward for your office
Completely clean all mess and destroy every item in Santa's Workshop and clock off
Cleanup your own personal Office by removing any Trash, Viscera and Blood; excluding trophies, then leave
Steal 30 or more Personal Identification Devices (P.I.Ds) from cleaned levels and take them to your office
Completely clean all mess in Santa's Workshop and clock off
Collect Santa's shotgun and bring it back to your office
Collect the iconic reindeer nose and bring it back to your office
Collect the different Rooks Keep figurines and take them back to your office
Collect the different Ballistic Weapons toys and bring them back to your office
Collect elf heads and bring them back to your office, you freakin' psycho!
Clean any map adequately
Requisition a new replacement janitor through the use of TNT
Build a stack of 10 stools
Prove your incompetence by leaving a worse mess in Santa's Workshop and clock off
Tame the uncontrollable fury of the Big Banger by incinerating it
Bring about the sad meeting of Ice-Cold Banger and fire
Get fired!
Clean the entire House of Horror level
Collect the chainsaw, boomstick, cursed hand and the evil book and return them to your office
Collect the mask and machete and return them to your office
Collect the clawed glove and return it to your office
Collect the white mask and butcher knife and return them to your office
Collect the axe and return it to your office
Collect the ring and return it to your office
Destroy 200 items in the woodchipper
Get consumed by an inter-dimensional crack in space-time
Destroy the Bad Banger
Clean the entire Vulcan Affair level
Find all the unique Collectibles in the Vulcan Affair and return them to your office
Allow the Banger to ascend to its rightful place among the heavens through the use of an orbital beam weapon
Using an orbital beam weapon, destroy the symbol of your most hated overlord; cats!
Get turned into mist by an orbital beam weapon
Lock another player inside a holding cell where they belong
Bring about the unfortunate meeting of Double-Oh Banger and Shark
Foolishly activate the Death Ray
Feed the ever hungry Sharks 500 items they can either devour or destroy
Go for a swim with Sharks