This is a coffee break game in the old-school sense of the phrase. It's a turn-based "board game", with play sessions lasting from ten to thirty minutes, depending on whether you die early or play to the end.
Basically, you pick a "class", which determines your starting gear and the value of given items (Military players will want to collect weapons and tech, Scientists will want samples of alien lifeforms with a secondary emphasis on tech, and Pirates will focus on "treasures", mostly consisting of otherwise useless sulptures and shiny things).
The endgame score is equal parts skill and luck. You'll need to figure out what does what, and you'll need to be lucky enough to find things to do the things that do things. (Hint: Smash the Timeless Bauble and type "Nova Cannon" or "Hyperdrive", depending on which you don't have yet.)
Every so often, the game board will spawn with one of three "Major" random events. To beat these, you'll need to either look up a game guide, or try your hand at trial and error.
By the time you've got things figured out, you'll really only be playing this game to try to beat your last score. This is the primary charm of the game. "Oh neat! I found this really valuable thing really early on in the game! I sure do feel lucky!". The parts of the game that require skill are equally emotionally-rewarding. "Wow! I can't believe I vapourised an entire Urluquai armada!"
For $10, you really can't go wrong for something that'll always be in your library whenever you need to kill ten minutes. Time is money, especially in this game.