Please answer

[Abissal]

do i only need neverwinter nights original to play the game or do i have to have instaled te expansions 2

[Leanthar]

If you look up in the top left corner of the screen you will see this text: Layonara Online (nwn/sou/hotu-1.67)

You need nwn and the two expansions and the latest patch update.