I want to run the minecraft client and server on a local network.
To avoid what appears to be a pile of "free" scam sites, I want to purchase and download it from the official site.
However, on the official site it appears that you can't do that. It seems like you are buying access to minecraft.net. I don't want to play on public servers. I just want to download the .jars and run them locally.
Does the software validate against public servers even though you are playing locally and potentially offline?
Do you need a subscription to minecraft.net, or is there somewhere else to download the game .jars?