Azriel Odin is a detective with a dark past searching for his brother Daniel. Searching on the planet of Barracus, a cesspit of villainy, he struggles from clue to clue to find any way to discover where Daniel might have been taken. Meanwhile, in an unknown medical institution, "Charlie" finds himself without any memories, but sure of the fact that something is very wrong.

Gemini Rue is a cyberpunk mystery adventure game that has players figure out ways to overcome challenges to discover the secrets each of the characters seek.