Star Wars: Rogues of the Old Republic (ROTOR)
A large gas nebula in the Outer rim. The Nebula is, or perhaps contains, a holy site to the Grellacians.
Within the Nebula, ship to ship communication is often difficult outside of line-of-sight. The gas clouds and plumes interfere with sensors, making it possible for ships to hide in the nebula. This makes for a dangerous game of hide and seek.