minecraft pc version LAN connected game

I purchased MC latest version from mojang with 1 registered account. I installed on my desktop and laptop. i want to be able to launch the game then OPen to lan option. I launched the game on laptop and tried to connect to the LAN game on the pc but cant i always get user already used does that mean i have to have 2 different accounts to just connect on LAN. i do not want connect via WAN. also does Minecraft need java installed? how do i setup MC on the desktop to play locally?

i will test that but i would think DEMO mode would have limitations.

I downloaded and installed the demo for a friend's son today. It says in the website that you don't need Java. However, I am not sure if LAN game is possible. One game lasts 100 minutes as mentioned and demo is valid for 5 days.

You'll need Java if you want to play the game in the browser.

why are there sites that say java not required? kind of sucks that i bought a copy and want to play with my son, Im on the desktop and hes on the laptop for a simple LAN game. now i have to buy another copy of it annoying to say the least.

Well, usually if you want to play on 2 PCs, you have to buy 2 copies. This is true for majority of games/software. To clarify/consolidate info: You don't need Java to run the exe client. You will need Java in order to play from a web browser.

There seems to be a way to play an offline LAN game, I am not sure if this is still valid. It doesn't hurt to try:
Is there a way to play minecraft with the same accounts without a server? - Arqade

GokAy said:

There seems to be a way to play an offline LAN game, I am not sure if this is still valid. It doesn't hurt to try:
Is there a way to play minecraft with the same accounts without a server? - Arqade

This method still works. Tested it out with a friend a few hours ago.

MrNeeds said:

You do need Java to play on the desktop version, the EXE file is called javaw.exe, the ingame f3 screen tells you which version of java you're running :

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