From publisher blurb: SCAVENGER: Crimson Catalyst is an entirely player-facing supplement designed to bring the fantasy of the Scavenger universe to 5th Edition. It includes: Four new subclasses, including the Alien Apex Ranger and the Path of the Vermillion Abomination Barbarian. Dozens of variant class features, including replacing spellcasting with a new magic system for certain classes. Cultural Tricks for creating authentic characters of Scavenger’s various rich cultures.