Full list of all 33 Two Point Hospital achievements worth 1,090 gamerscore. It takes around 100-120 hours to unlock all of the achievements in the base game.
The base game contains 30 achievements worth 1,000 Gamerscore, and there is 1 DLC packs containing 3 achievements worth 90 Gamerscore.
All achievements
Achievements they've won
Achievements they've not won
Complete Wave 42 on Topless Mountain
Earn 63 Gold Stars
Earn 1 Star at each hospital on Pebberley Island
Get a Curing Spree on Topless Mountain
Unlock every plot in Overgrowth
Earn 54 Gold Stars
Earn 45 Gold Stars
Earn 1 Star at each hospital in the Pointy Mountains
Complete the "Cheesier Gubbins" Research Project in Swelbard
Earn 30 Gold Stars
Knock the socks off of Bartholomew F. Yeti
Have a Level 5 De-lux Clinic at the Underlook Hotel
Reach $50,000,000 Organisation Value
Train a World-Class Surgeon
Complete 50 Research Projects
Run 50 Marketing Campaigns
Earn 15 Gold Stars
Earn 10,000 Kudosh
Injure someone with an exploding machine
Train a World-Class Researcher
Train a World-Class Psychiatrist
Capture 100 Ghosts
Have a Level 20 Hospital
Conduct 25 Machine Upgrades
Win every award in a single hospital
Shoot 10 Monobeasts in a row without missing
Cure 1000 Patients
Shoot 1 Monobeast
Have a Level 10 Hospital
Cure 1 Patient
Complete 50 Research Nodes
Complete Superbug Project "Hair Removal"
Complete a Multiplayer Challenge