This game even though it is a beta has enough content to stand alone. I have spent many days into the early morning playing this game. It is as simple or complicated as you want. You can have a neat orderly factory, or a spaghetti of conveyor-belts, power lines and pipes. This game is how you make it and is good for many age levels and backgrounds. I am an engineer and love this but many of my friends like the base building aspect. You can slap together a factory and just go exploring, or you can program every detail using logic gates and networks to control every aspect of production, your choice. The modding community is great and add a lot to the game if you find this game is not complex enough. As an engineer, i have never thought that i would need any more complexity than the standard version. The developers are updating the game with good content almost monthly and take feed back from modders and players. In all, for 20 dollars you could rent a few movies, go see a movie or two, or spend the next 100 hours learning basic logic gates and programming your factory, fighting off the alien life forms, and exploring the unknown.