I tried to do a beta 1.8 kill all mobs on a rsg but couldn’t find a cave spider or slime, so a ssg would be better for a run. The mobs you need to kill are (Pig, Sheep, Cow, Chicken, Squid, Wolf, Spider, Cave Spider, Zombie, Skeleton, Creeper, Slime, Zombie Pigman, Ghast, Enderman, Silverfish.)

Good luck bro

Nice