Perfect Dark is GoldenEye's unofficial sequel. It was developed, at least in the beginning, by the same team. It runs on an advanced version of GoldenEye's engine, which has support for many new features, such as elevators and vehicles that can attack the player. Being an original IP, there are no direct references to GoldenEye in the game, but many of its resources, such as textures and object models have been reused. Additionally, the Temple, Complex, and Facility multiplayer arenas were featured, along with a handful of GoldenEye's weapons.
There is a Perfect Dark gameplay wiki located here. The GoldenEye wiki only contains information pertaining to hacking Perfect Dark, since the two games are very similar in that regard.