SPACEPLAN

That's pretty much all there is to the game, building up your power-generating resources, purchasing a special item, and then seeing where the story takes you next. Sometimes a little gameplay element is added in, such as trying to drop probes on a specific spot on a planet from orbit, but for the most part the game will just run itself with occasional input from you. If this sounds like it may be boring to you, you're probably right and should avoid SPACEPLAN. On the other hand, if you're willing to spend a few dollars on a game that's a bit unusual, you may find yourself enjoying the experience.