Here is the full list of all 24 Superflight achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Inverting the steering axis? Seriously, that's just wrong.
Crash 300 times.
Crash 150 times.
Enter the zen mode.
Explore 100 maps.
Explore 50 maps.
Gain 40.000 points in a single run.
Complete a 10.000 points combo.
Loose 10.000 points in a crash.
Gain all three praises in a single run.
Crash 50 times.
Gain the "Godlike!" praise.
Explore 25 maps.
Gain the "So Close!" praise.
Gain 20.000 points in a single run.
Enter a seed and create a map.
Gain 10.000 points in a single run.
Travel through a portal.
Reach the end of a map.
Complete a 5.000 points combo.
Gain 5.000 points in a single run.
Gain the "Awesome!" praise.
Complete your first run in Superflight.
Complete a 1.000 points combo.