its like a tribe of doods and they're on an island with some other doods but the island is full of dinosaurs and everyones gotta survive. cause the dinosaurs are big or theres lots of them and they wanna eat you. so you gotta rope em up cowboy style or shoot em with arrows or stab em in the eye with a spear.
but not all dinosaurs are bad you can beat them up and then instead of eating them share your weed with them and they'll be like this dood is alright and then they're tamed so you can mount them and ride them into battle or make them fght other dinosaurs for your amuseme-- for survival.
there's also like camps and minecraft stuff like chopping wood or makin ga fire. or building totems. or stealing other peoples stuff.