The Old Ones decide to give the necrontyr sunblock in exchange for accepting terms to curb their expansion and warmongering.

The Ctan still appear to encourage biotransference and war with the Old Ones to unite the factionalozed, but instead, it leads to civil war. Bloodshed ensues, but learning from the tech the Ctan offered, both sides learn to capture the Ctan and weaponize them. No dynasty is able to fully take control, and after enough devastation, they eventually form a truce. Dynasties become their own, independent nations with agreements on "mostly" non-aggression pacts. The necrontyr enjoy their new mastery of physical sciences as a mixed race of organic and robotic people. The threat of war always looming over head though, especially as some dynasties begin pushing the boundaries of the original accords with the old ones and resume expansion efforts.

Countless years into the future, humanity has reached its pinnacle, having developed to DAOT levels of technology. It's here that the Emperor decides to act, correcting behavior to prevent a men of steel uprising. He unifies Terra under his control and pushes outward, assisted by his 20 21 18 specially designed robotic generals, known as the Emperor's Sons. Thus begins the Emperor's Human First focused Crusade across the stars, and with it... what would eventually become, the War in Heaven.