Titanomachina: Escape From Gaia ready for Play-testing

I saw this mechanic in a wonderful game about modern art ("Art Society"):

Initiative goes to the player that plays the highest card, with ties going to the previous card value, and any further tie going to the ship with the most fuel. 

Ships are dice, used to track fuel.

Players move their ships in initiative order.

• Up an orbit costs 2 fuel
• Moving along the same orbit costs 1
• Moving down an orbit earns 2
• Moving into space with a planet earns 1
• Moving into a space occupied by another player costs 1.

There's all sorts of other bells and whistles I could put in there, like giving cards special rules or whatnot, but right now seven poker cards (1-6 and a joker) should do it.

Players win by moving up, out of the solar system. Players can't have less than 0 fuel, and start with 4 points of fuel. Planets are spaced out so that players can't immediately bootstrap themselves out of the solar system.