From the back of the book: Discover a world where anything is possible! In the center of the universe hangs the Crucible, a gigantic artificial world created by the enigmatic Architects and home to countless beings and cultures. Here, impossibly advanced technologies mix with arcane powers to make for a setting unlike any other! Using the Genesys Roleplaying System, this source book allows you to undertake fantastical adventures and uncover the Crucible's many wonders and dangers. Lost civilizations, cryptic conspiracies, bizarre environments, mutated monsters, and more await! This supplement for the Genesys roleplaying game includes: A guide to the Crucible and areas such as Quantum City and the World Tree, along with Logos, Star Alliance, and other factions. Character creation options for playing species such as Elves, Giants, Martians, and Saurians with new careers like AEmbermancer and Vaultwarrior. You can even customer-evolve your own to play a new species never-before-seen on the Crucible! Unique weapon and armor traits plus vehicles like Martian flying saucers, Sanctum lancer bikes, and Brobnar helwargs. New skills and rules for using the mysterious substance known as Aember to craft powerful abilities and items. Adversaries including creatures, demons, and other inhabitants, plus Archons and other legendary individuals of the Crucible. A Crucible Adventure Builder for fashion your own exciting encounters, from vault battle to high-tech heists and more--on the Crucible, anything is possible!