FROM THE WIKI - First, you must locate a small spire called a Megaraptor Altar. This is commonly placed where the Megaraptor spawns. The Megaraptor must also be in the general area to initiate the taming procedure. To start, equip the torch and interact with the altar. This will lock you to a small area around the altar and heavily obscure your vision. The Megaraptor will enter camouflage and approach you, then after a brief moment, it will attack you before entering camouflage again. You must swing the torch at the Megaraptor before it attacks you; successfully doing so will interrupt its attack and apply torpor to it, indicated by a bar near the bottom akin to when taming a Fasolasuchus. Simply repeat this process until the Megaraptor goes unconscious. Its preferred kibble is Exceptional Kibble but accepts the general carnivore diet for taming (Raw Mutton, Raw Prime Meat, Raw Meat, etc.).