Here is the full list of all 12 Type:Rider achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Collect all letters
Locate the eight hidden ampersands
Retrieve all asterisks
Finish the secret level
Share a post on Facebook or Twitter
Read all the books
Finish the game
Finish the Clarendon level without dying
Make seven wall jumps in a row
Find one ampersand
Retrieve all six asterisks in one chapter
Make a 360° in the air