Here is the full list of all 17 Snakeybus achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Get 420 segments.
Unlocked Coriolis map.
Unlocked Endless map.
Unlocked Dragon bus.
Get 300 segments.
Unlocked Party bus.
Found Paris Night map.
Unlocked Miami map.
Unlocked Clustertruck.
Unlocked Ring Map.
Get 150 segments.
Unlocked School bus.
See you at the top.
Completed first game.
Unlocked Suburbs map.
Unlocked Museum.
Launched Snakeybus for the first time.