PrimitiveMobsRevival
The classic primitive mobs mod, ported to 1.20.1 with some small changes.
Festive Creeper
Don't trust his friendly face, this new creeper variant will throw active TNT at the player.
Rocket Creeper
Another creeper variant, he is very unstable and will launch itself at the player. Any contact with the player will cause him to explode
Support Creeper
Different type of creeper variant, he will not attack the player but he will buff other hostile mobs.
Traveler Villager
Former nitwit that left its village in search of a purpose, can be used as additional storage, he will join your adventure in exchange of some emeralds (previously known as traveling merchant completely overhauled because similars where officially added)
Spider Family
Mother spider with her babies, she will shoot spiderwebs to slow you down. Every time you damage her she will summon another baby spider, baby spiders can be tamed using fermented spider eyes and will fight alongside the player.
Tamed Baby Spider
When you tame a baby spider with a fermented spider eye he will follow and fight alongside you. You can also ride on it.
Blaze Juggernaut
Blaze variant much stronger and agile can be found everywhere inside the nether.
Skeleton Warrior
Ancient warrior came back to life, won't burn in sunlight. Throws daggers at the player, strong knock back.
Trollager
Troll entity hostile to player, strong attack damage, turns into stone when daylight arrives.
Stone Trollager
When daylight comes the troller will turn to stone, players can still damage it but won't be rewarded
Flame Spewer
Hostile mob will only spawn in lava, this mob will shoot flames at the player.
Lily Lurker
Camouflages it self as a lily pad be weary because it will bite the player, they swim in groups and are pretty fast.
Brain Slime
Slime entity, leaps onto players head to suck their brains if you equip a helmet they won't do any damage, but you won't be able to use any items.
Void Eye
Possessed ender eye, shoots ender ray at player and can break blocks.
Lost Miner
Miner Villager went adventuring seeking emeralds but got lost, will follow you If you hold an iron pickaxe, once he is in the surface he will turn back into a normal villager you can assign any profession to. Will only spawn underground y=50 and below.
Haunted Tool
Possessed Tool by ancient miners, hostile to players spawns only in caves under y=50.