Here is the full list of all 13 Rumble Runners achievements.
Run a total distance of 10 miles
Run a total distance of 100 miles
Run a total distance of 1000 miles
Customise your Golem
Buy something from the Shop
Spend 1000 Stardust in the Shop
Spend 10,000 Stardust in the Shop
Build and Save a Path with the Path Creator
Build and Save 10 Paths with the Path Creator
Build and Save 50 Paths with the Path Creator
Reach the End on Impossible Difficulty, 50 paths, no retries and Default Paths only
Skip the Intro and upset the Game Master
Jump off the Lobby