Beta Maxx is a new game engine created by Andrew Chirgwin and is a structured freeform game system. Each different game is then further hacked to add tropes of the genre into the gameplay.
Beta Maxx X is in the Space Opera/Fantasy Action Genres, with influences from 80s and 90s Scifi and Action media.
Beta Maxxthulhu is a Weird Tales Genre game, with its main influences from the 19th Century style stories.
Beta Maxx Death is a Slasher Horror genre, taking it's influences from the long tradition of 'throwing blood around the place' horror movies.