I've already asked this on the GameMaker forums but had no response so far. I'm making a little Lunar Lander game as my first foray in to GameMaker, I'm wanting to have the ship land and take off again too. I'm new to scripting and programming in general and I'm having trouble with acceleration, in particular with gravity. Basically I need to: Be constantly pulled downwards to simulate gravity up to a maximum speed (terminal velocity) Activate thrusters to accelerate my ship towards its curre...