Here is the full list of all 30 RollerCoaster Tycoon World achievements.
Reach a Park Rating of 100
Reach a Park Rating 500
Reach a Park Rating 750
Build an inverted coaster
Crash 30 Coasters while they're in test mode
Build a standing coaster
Build a floorless coaster
Build a total of 500 miles of tracks
Bowl a coaster train through peeps on a path
Build a hyper coaster
Build your first custom-coaster
Go bankrupt once
Create your 1st coaster blueprint
Create 5 coaster blueprints
Create 20 coaster blueprints
Click on 10 trees and scare away the birds
Click on 10 coconut trees
Injure over 100 peeps in a single accident
Build a park with a value of $500,000
Build a park with a value of $1,000,000
Have 1,000 peeps become injured
Have 1,000 peeps become lost
Total profit of $1,000,000,000
Build a wooden coaster
Build an accelerator coaster
Build a dive coaster
Build a wing coaster
Build a flying coaster
Build a spinning coaster
Crash 30 Coasters without testing them first