May 20, 2019

v1.7.3
* Option to adjust terrain lifetime

v1.7.2
* Multiplayer unlocks earlier
* First adventure unlocks earlier
* First challenge tracks tuned slightly

v1.7.1
* New game mode: Challenges! With 16 new tracks!
* Challenge leaderboards
* Fixed auto-start bug after retry
* Allow 10s draw time with empty fuel tank
* Prevent drawing on top of moving obstacles
* Slightly thinner draw terrain