Gasmoxia is the home planet of Nitros Oxide, first mentioned in Crash Team Racing but is not seen until Crash Bash. It returns as the final track location in Crash Bandicoot Nitro Kart 3D and Crash Team Racing Nitro-Fueled, in the latter to serve as the setting for the track Drive-thru Danger.
The planet is dark, green, misty and surrounded by a poisonous atmosphere, small asteroids and a single dark green moon. Not much is known about the planet itself, other than that there are two chains of fast-food restaurant - Toxic Burger and Nuclear Pizza. Only two locations have been seen in the series: a dark, moggy refinery city and a futuristic, carnival-like city. In Drive-Thru Danger, the lights of civilization can be seen underneath the track from the upper atmosphere. During the Gasmoxia Grand Prix of Crash Team Racing Nitro-Fueled, a race track was constructed high above the planet's atmosphere.
Aside from Oxide, the only other known residents are his henchmen, Zem and Zam, though they are of different species; the former being a troll like creature and the latter resembling a dinosaur. However, as shown in Crash Team Racing Nitro-Fueled, there are other inhabitants that both work for and attend the planet's fast-food outlets. There are also alien birds seen.
- According to Oxide in-game, the planet is allegedly somewhere in the Milky Way (of the Crash canon), as Oxide claims he is "the fastest racer in the galaxy." However, in the tie-in comic that can be found on the official Crash Team Racing Nitro-Fueled website, it says that Gasmoxia is from a distant galaxy and that Oxide is aware of this.