After working on the basics of a hero building game in October and November I've been largely out and that game lies collecting dust... for now.
I had a rush of inspiration for a completely different game that I want to share with you guys. The biggest question is, though: does a game similar to this one already exist? It doesn't sound too original to me.
Earth's population has grown beyond carrying capacity and resources are almost depleted, so the people of Earth rushed into space age in order to find resources elsewhere.
Players start at the Earth hex tile with a simple space ship. They can explore into any direction, which they do by drawing tiles from a large stack a la Carcassonne, and then moving their ship in that direction. Hex tiles consist of empty spaces or planets with different characteristics (possibly also events like pirate raids).
Players need to establish an outpost on another planet, which they do by flying to it and "converting" the ship to an outpost (basically putting the ship token upside down on the planet hex). Once they have an outpost, they can generate resources to feed their people and build new (more advanced?) ships.
The ship will run out of fuel after moving x hex tiles. Therefore players have to decide whether they want to colonise a planet they discovered or want to continue their journey without knowing what comes next.
I have not thought of the winning conditions yet. Could be e.g. the first person to deliver a set number of resources to Earth or the one who delivered the most resources after all tiles have been used.