Lunar Command is a newer version of Moonbase that can run on your modern PC. I had a dig around and really, I can see no difference except for I think maybe airlocks weren’t available in the other version, but I’m not sure. Plus,it now runs on computers properly and the menu’s are in English as opposed to gibberish.
Lunar Command like Moonbase was not very popular, yet is one of the best sim games I have ever played. You create a base on the moon and then mine minerals (or create electronics and material) which you sell back to earth. You have to get producing/mining goods to sell right away because NASA withdraw their support very early on in your mission.
I’ve added the manual as a link below which I got from HOTU. I figured I could redirect you over there to get it and you can, visit www.the-underdogs.info or you can save their bandwidth and download it here. 🙂
View my Moonbase review for further information about this game.