I would advise you Terraria and Ark: Survival Evolved, although you probably already heard about these games. Of the less popular games, I advise Realmcraft, it is very cool :)
There are plenty of games like minecraft for free, like infiniminer and manic digger.
You could try FortressCraft for the Xbox 360. or Terraria Its like playing minecraft but in 2d. Or Cubelands, it's a lot like it but. it doesn't seem to have the same polish. There are not many games like minecraft but you could try EDEN.
Minecraft
Terraria, Eden
You can't. You can play other games like it. But not minecraft.
there's a game called Roblox, but Minecraft is better
Minecraft
Minecraft and Blockland are other cool games but not with tycoons.
Minecraft does take up space on your computer, Like almost all games.
There are many games like minecraft available on the internet, try out any of these:Terrraria (2d minecraft available via steam)BlocklandRoblox (teen focused)CubelandsFortressCraft (focused more on battling other players)
Amazing game , I like games like Minecraft and etc. You should check gamecupid.com , there you can find and read whatever you want about games and feautures. I think that it will be usefull.
there are none except for Lego games