The Ngame Nebula was a nebula. In the nebula, there was a T-Tauri star system. This system was home to a single M-class planet – the Paxan homeworld.
The USS Enterprise-D passed by the nebula in 2367 en route to Evadne IV. (TNG: "Clues")
According to the script, the pronunciation for Ngame was "n'GOM-aye".