Here is the full list of all 11 Shiver achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Complete the game
Don't use a single cigarette while in the park
Call for help with the radio
Escape Mort's Mine
Smoke six cigarettes
Smoke by the no smoking sign
Remove the lock with the power of science
Teach that creepy mole a lesson
Enter Mort's Mine
Start the Generator
Arrive at Windy Oaks National Park