Here is the full list of all 12 Unlanded achievements.
Complete the Tutorial
Beat the Game in less than 20 minutes in one run
Restart levels more than 400 times
Beat the Game with less than 5 reloads and crashes in one run
Make more than 42 full turns
Complete a level without rotation
Crash your ship 10 times
Crash your ship into pulsar
Complete any 9 levels without reloads
Crash your ship after entering an Exit Point