When a world becomes too much of a hassle, its host Gods (or something greater) invoke the titans. Their massive frames rend the troublesome planet asunder for the greatest of resets. Titans specifically target infrastructure hubs to cripple a civilization before moving on to where the refugees are thickest. They exact the ultimate purge in the name of their master, driven in real time for a peace that will lull them into a state of half-waking slumber, a meditative state they can enjoy for aeons until they are called upon again to wipe the slate clean, or are summoned to another problematic world challenging the powers that be. They are considered as a last resort, since their destruction is indiscriminate, and they will often destroy things their invokers did not want razed to atoms.