This is an engine that I built to run a complex d&d stat in a pretty way. Space to go/use power. How it works: The tanks are connected to a momentum-driven reality reactor. This means that any turn that they are not engaged, they will be regaining fuel. Emptying all tanks is an easy way to build up speed quickly, yet means all your tanks will be empty next round. The indicators on the far left and right are turning power levels, meant to signify any thrust being provided to turn or roll the craft. The way it will work in game: Toggling the ballast tank and gear-shifting main tanks will count as half an action. Steering, using the four directional thrusters is a built-in ability check each round, not eating an action as long as you are the one currently engaged with the vehicle. Becoming the driver probably takes an action.
All sprites made in Piskel, a great free online pixel art editor. All coding and math by yours truly, good job me. I think it is really pretty and very functional, definitely the best thing I‘ve made, due to it‘s complete air-tightness. Hope you enjoy!