Project Dominion was an arcane weapon developed by the nation of Troverth during the first Realm War. its purpose was to pacify enemy armies to allow for easy victory, but its true capabilities were much more sinister.
Project Dominion spawned off another Troverth research inititive, Project Overlord, which was an attempt to summon and bind a Demon Lord. Much of the components used for Project overlord would be repurposed for Project Dominion. The project was spawned by the Troverthian arcanist Mae Tadako, one of the lead researchers on Project Overlord. She surmised that one could use the same magic they used to bind demons on mortals in a way that would remove a mortal's ability to enact violence. To prove her theory, she created a small prototype device which she tested on herself. Seeing the results, the Troverthian Prince Feng Yuhan commissioned the creation of an engine that could enact its magic realm wide. His intentions were to use it on enemy armies, while Mae Tadako's intentions were to use it on the entire realm.