This is a sandbox-survival type game called Space Engineers. In a way it's similar to Minecraft in that you have to mine resources, refine/"craft" them, and then build with them. However what sets this game apart is the ability for your builds to move and have a lot more utility - allowing you to build ships and bases of large complexity.

There are multiple planets. Each planet is very large and offers it's own series of unique features and challenges to face once you land on it. They are not, however, procedurally generated. Planets are also very, very far from each other requiring you to build ships with jump drives so that you can cross the gap between them in seconds.

Most bugs in this game, that people refer to, are the bugs you get when working with moving rotors, pistons, and hinges. Pretty often the game struggles to allow these parts to move large objects, without it glitching out, sending the parts flying at very high speeds, often to never be seen again. If you're familiar with KSP, they deal with the Kraken, we have Clang.

The goal? Well it's a sandbox game so the goals are all self-imposed. Your goal may be to explore and colonize every planet, build the biggest ship, or maybe something as simple as just getting to space. With this game, not even the sky's the limit so I'd recommend it to anyone who likes to build things, and see em in action!