I discovered this awesome game on Steam: Stellaris If you are into 4X style games, then chances are you will love this. You control a galactic empire, starting out with just a single planet and very little technology. You get to customize your starting species a lot, like giving them longer lifespans, higher intelligence or greater strength. You can choose a natural affinity for a type of research. The game itself can be played without really caring about victory conditions. You just manage your empire, slowly expand, come into contact with other species. You can choose to go for a diplomatic approach, or more aggressive style. You can form alliances, and big alliances can even vote to form Federations. And yes, you can "win" the game by being part of a large federation that controls at least 60% of the galaxy. For a Star Trek fan like me, this game is just perfect. I get to simulate Star Trek. Even war in this game is very different from other 4X games. You can't eliminate another empire in one war. When you decide to declare war you must state your war goals. Each war goal has a certain value attached to it, and you can't exceed a certain total value for each war. This means that eliminating an enemy empire can only be done through several long lasting wars. There are also ancient civilizations in the galaxy, which are vastly superior to the other normal civilizations. You can also encounter primitive species, which you can observe and even push to evolve faster. You can choose to integrate such species, or form alliances or even exterminate them. Overall, I love this game! So definitely check it out if you like 4X (grand strategy), managing empires and sci-fi. EDIT: Forgot to mention that the game comes with a native Linux version that runs perfectly.