Spore vs Star Citizen
Spore
Spore is a pretty unique and addictively fun god-mode-like sandbox game where you get to create a whole new world and fill it with your living creations. As a "god", you can play around with the game's five evolutionary stages, from Cell to Space, and grow an entire space-faring civilization from its very simple beginnings as a single-cell organism. Of course, to develop a civlization, you'll need plenty of tools to help them along and Spore gives all of that to you in an easy-to-use format. You can literally customize everything you like in the game ranging from vehicles that your creations will drive or even buildings that your organisms will live in.Although Spore is essentially a single player game - after all, there can only be one almighty god... and that's you! - the world you've created is shared with other players in the game, so your creations can actually explore new planets and maybe even bump into a hostile race which will force them to make the preparations needed to go to war.
Overall, Spore is an amazingly detailed, civilization-building, sandbox game that allows you to micromanange almost everything if you choose to do so, or you could lay down the groundwork and let things unfold by themselves. Best yet, there is no limit as to how many worlds you can create, so unleash your creativity and your godly powers and develop the ultimate civilization today!
Star Citizen
Star Citizen is an incredibly ambitious and yet highly anticipated (and not to mention, hyped-up especially players who simply adore the genre) project to create the world's very first open world, sandbox game that's set not only in space but also on the many different planets and other locations that you happen to land on/dock to. The game will be pretty massive and it is developed on an as grand a scale as an indie company possibly can. The end product - the game's currently in early access - might end up looking like a Star Wars/Star Trek-like world that's equally in-depth and likely as diverse. Of course, the science-fiction/futuristic feel simply adds to the enormity of the game.However, being the type of game that even triple-A companies have never yet attempted before, the developers have drawn some flak in regard to the chances of actually finishing the game development process and giving their players - the people who had bought and funded the game - a complete game to play. Many critics think that these players will get burned in the end, but for someone who has grown up somewhat obsessed with almost every "space frontier"-type series ever made, I do hope that Star Citizen will be able to reach its true potential even if that means the downloads will take a painfully long time to complete.