Yup, in order to play online you need internet.
You need an internet connection to play online only
you need internet to get the game downloaded and you still need to have internet connection to run the program. sadly you can't play online, it has to be downloaded.
You do not need the internet to actually install the expansion Burning Crusade but you will need the internet to update and play it.
yes of course you do if you are going to be online you need internet
To download it from the website you need internet connection of course but once it has been downloaded you can play in singleplayer with no internet. To play on a multiplayer server you do need to have internet.
Yes. You can't play online without active internet.
Yes, You need an internet connection because when you are on Xbox Live you are using the internet from your router.
No, you need to have internet in order to play Clash of Clans.
Minecraft can be played online or offline. When you play online, you need Internet connection and you can play with other people. When you play offline, you don't need Internet connection but you can only play by yourself.
If you want to play online then you need internet for the new maps but you can play spit screen or split screen zombies (offline)
In Age of Empires 3, you only need an internet connection if you want to play with other people online with an ESO (Ensemble Studios Online) account. To play single player skirmishes and/or campaigns, you do not need an internet connection.