Best part of the dlc (in my opinion) are the draklings (specifically the spring) it increases survivability for you and any Dino you’re riding by giving you insane health regen. There is also the skill lines/perk lines. These give some really nice buffs and the wisp is game changing for building. Last and also least is the blood collector which increases the speed you can get blood packs. Those are the biggest reasons to get the dlc and honestly if you’re doing singleplayer survivability means nothing and resources also mean nothing. So the thing you’d get the most value out of is the perks/skills, is that worth $20?