The Dinosaur Island Add-on for Island Saver has 10 achievements worth 500 gamerscore.
Ride on an Ankylosaurus
Ride on a Velociraptor
Find all Newton's lost fossils
Collect a piece of broken Exit Bot
Build tax bridge
Help Newton repay all his debts
Feed a flying Pteranodon
Insert battery into Giant Tax Bot
Use T-Rex to smash amber
Open the Electric Gate