Primitive Mobs

Drops: Camouflage Dye (used to craft Camouflage Armor by combining it with Leather Armor)

Spawns: Daylight, Forests and Jungles (Overworld)

Hostility: Docile

Special Info: Can be tamedwith Melons and bred with Fermented Spider Eyes. Tamed Chameleons follow you around. Right-click with empty hand to make them sit still. The color changing effect supports modded blocks and resource packs. 

Drops: The loot they contain

Spawns: Nighttime, everywhere (Overworld)

Hostility: Hostile

Special Info: Rare items, like Diamonds, are obviously very rare. The loot they spawn with can be changed through loot tables (see section below). Modded items are supported.

Sometimes one can spawn without an item inside. Right-clicking it with a Slimeball will "tame" it. Follows you around when tamed. Right-click with empty hand to make them sit still. You can also put any item inside of the tamed slime and see their colors change!

Drops: Book or A random enchanted book (higher levels are rarer)

Spawns: Deep underground (Overworld)

Hostility: Docile until provoked

Special Info: Modded enchantments are supported.

Drops: The tool they haunted with reduced durability

Spawns: Nighttime, everywhere (Overworld)

Hostility: Docile until provoked

Special Info: Higher tier tools, like Diamond, are obviously very rare. The tools they spawn as can be changed through loot tables (see section below). Modded tools are supported. Use a Looting sword to kill them for tools with better durability!

Drops: Nothing

Spawns: Underground (Overworld)

Hostility: Docile

Special Info: Follows you around. When led to the surface (above y=50 and when he can see the sky) OR when near a village, you can right-click him for 2-4 emeralds as reward! They will then change into a normal villager with the unique Miner Profession.

In the config settings, you can enable the Miner Profession to spawn in villages as well. Their villager noises can also be disabled.

Drops: Nothing

Spawns: Everywhere on well-lit natural blocks (Overworld)

Hostility: Docile

Special Info: Offers some unique trades which are balanced around vanilla trades; most of their stock cannot be found in villages. New trades unlock like with normal villagers. Follows you around when you show emeralds. He does despawn like other mobs, therefore the name; however you can make them settle by bribing them with an emerald block (they won't despawn then). This can be disabled in the config.

Drops: Gunpowder, Firework Star (Rare), Mystery Egg (very Rare)

Spawns: Nighttime, everywhere (Overworld)

Hostility: Hostile

Special Info: Look at that smug! Once close, they wait a bit before they launch themselves upwards and come down to the ground to explode in your face! Explode like normal when they do not have enough space to jump.

Drops: Gunpowder, TNT (Rare), Mystery Egg (very Rare)

Spawns: Nighttime, everywhere (Overworld)

Hostility: Hostile

Special Info: They throw small blocks of TNT at you, but run away when you get too close. Their explosion terrain damage can be disabled in the config settings.

Drops: Gunpowder, Cookie (Rare), Mystery Egg (very Rare)

Spawns: Nighttime, everywhere (Overworld)

Hostility: Docile until provoked

Special Info: They buff a mob near them with Potion effects (Fire Resistance, Strength and Speed) and follow it around. They also charge Creepers if they choose to buff one. Explodes and becomes aggressive like normal when below half health.

Drops: The item they have stolen

Spawns: Deserts (Overworld)

Hostility: Docile until provoked

Special Info: They will sneak up to players who have ingots or gems in their inventory, and steal one when close. They drop their stolen item when hit once and run away. Sometimes they spawn with an item already, allowing you to steal from them instead. The items they like can be changed through loot tables (see section below). The chance they spawn with an item can be changed in the config settings.

Drops: Slimeball,Lily Pad

Spawns: Swamps (Overworld)

Hostility: Docile until provoked

Special Info: They wait for unsuspecting animals or players to come by, to surprise attack them! They particularly hunt Squids. Suffocates on land.

Drops: The sapling they hold

Spawns: Forests (Overworld)

Hostility: Docile

Special Info: They associate with a specific tree. Modded trees are supported. Grove Sprites will plant the saplings they hold overtime (does not happen too often). They will also help saplings of their own type grow! Give a Grove Sprite a sapling of their own type and they will no longer despawn. Giving a sapling increases their sapling inventory; which also increases overtime. Their inventory decreases by planting sapling or by right-clicking them with bonemeal, which yields Wonder Sap! Wonder Sap can be put in a crafting table together with any type of log to convert it to the Grove Sprite type log! 

Drops: Raw Dodo, Feathers

Spawns: Near Mycelium (Overworld)

Hostility: Docile

Special Info: They act like chickens, but have some additional benefits. Their meat is very nutricious and probably the best food compared to vanilla Minecraft (when cooked). They change Grass blocks into Mycelium every once in a while (can be disabled in the config). They also, very infrequently, lay Dodo Eggs. However there is a catch to all this; their breeding item changes everytime and you only know through trail and error. They choose between: all seeds (including cocoa beans), all crops, all fruits and all mushrooms (vanilla items). They spawn everywhere near Mycelium, also outside of Mushroom Islands. 

Drops: String, Spider Eye (Rare), Spider Egg (very Rare)

Spawns: Nighttime, everywhere (Overworld)

Hostility: Mother: Hostile, Baby: Docile until provoked or Mother provoked

Special Info: Mother Spiders become enraged and stronger when you attack her babies! Sometimes a Mother Spider will drop a Spider Egg, which can be used to summon a Baby Spider that will fight for you. Use the Spider Shell to retrieve the baby. The maximum amount of babies the mother spawns with can be changed in the config settings.

Baby Spider raising: Once you release a baby spider from an egg it is "tamed" and will follow you around and attack for you. They can be set to "sit" by sneaking and right-clicking. They can be fed Fermented Spider eyes to have them grow one stage; doing so will NO LONGER allow you to retrieve the spider in an egg. Use 5 Fermented eyes to have it grow up into a full spider. Their eye color is random but can be changed by right-clicking them with dyes! Right-click a fully grown spider to ride it!

Drops: Slimeballs

Spawns: Beach (Overworld)

Hostility: Hostile

Special Info: They will jump on player heads and start damaging them. Multiple Brain Slimes can stack up, causing more damage. Hit them, to cause them to fall off. You can also wear a helmet to prevent damage; however the helmet will take damage instead. Smaller Brain Slimes will grow after "sucking" brain 10 times; making them stronger.

Drops: Chest, Mimic Orb (Rare)

Spawns:  Chests generate underground which have a chance to be a Mimic (Overworld)

Hostility: Hostile

Special Info: Chests now generate in your caves (generation rate can be changed in the spawnrate config). When encountering such a chest and trying to open it there is a 1/3 chance of it being a Mimic, a 1/3 chance of it being a mob trap with mob drops in the chest and a 1/3 chance of it being regular loot which varies in value (balanced around vanilla). Sometimes it contains a Mimic Orb (see item section). The mimic loot uses loot tables, so they can be adjusted like normal.

Drops: Bones, Arrows, Their weapon/helmet (Rare)

Spawns: Nighttime, everywhere (Overworld)

Hostility: Hostile

Special Info: Their arrows apply weakness, so watch out!

Drops: Blaze Powder, Blaze Rod (Rare)

Spawns: Everywhere (Nether)

Hostility: Hostile

Special Info: Attacks in a zig-zag pattern, making bows hard to use against him.

Drops: Obsidian, Emerald, Golden Apple (Rare), 32 x Stone (when Stone)

Spawns: Nighttime, everywhere but more commonly underground (Overworld)

Hostility: Hostile

Special Info: Has three attacks: Throw block, smash ground and just a regular melee attack. He is not very smart, but can do serious damage when he hits you. He senses players from far away so if you hear explosions while spelunking, be careful. Turns to stone when exposed to daylight. When stone, only pickaxes hurt him. 

His smash attack can be disabled in the config settings.

Drops: Gunpowder, Diamond (rare) (dropped items launch to a safe surface if possible)

Spawns: Deep underground in lava pools, the Nether

Hostility: Hostile

Special Info: A FlameSpewer will try to get in range of their target player. They then inhale lava; shown by their lava coat. During that animation they cannot be harmed. When ready, they shoot a barrage of flames at their target!  They suffocate on land and will try to move to nearby lava pools slowly. They receive large amounts of damage when exposed to water.

Drops: Iron ingot, Emerald (rare), Goblin Mace (rare)

Spawns: Underground, More common in mineshafts

Hostility: Hostile

Special Info: They look like your basic melee enemy; however their maces damage 10% of the durability of one of their target's armor pieces! Make sure to keep your distance. They also attack villagers, simply because they don't like the look of em.

Drops: Feathers, Gold Ingot (uncommon)

Spawns: HighMountains (Extreme Hills)

Hostility: Hostile

Special Info: They approach slowly in the air and then SWOOP up their target, grabbing them by the head. Then they quickly rise and rise up in to the air! They will drop their victim once they reach a certain height or when they are damaged. So quickly punch them when you get grabbed!

Drops: Nothing

Spawns: Nether

Hostility: Docile

Special Info: They are back in black... and red and orange! 3 new professions for these Nether sheep villagers; the Scavenger, the Thief and the Alchemist! They use gold ingots instead of emeralds for trade. Bribe them using a golden block to prevent them from despawning. They can also be sheared like normal sheep :P

Drops: Coal, Eye of Ender (rare)

Spawns: Deep underground, the End

Hostility: Hostile

Special Info: These creeps can be found near the void layer. They gaze at their target THROUGH WALLS! However their harmful gaze is weakened while piercing walls; causing it to only inflict blindness and hunger upon their target. But when fully exposed, they can deal some serious armor-piercing damage. Once you see their eyes in the darkness, make your way to them by mining and deal with them swiftly before they can harm you. They can also teleport on hit; making them even trickier. Good luck!

 Camouflage Dye: Dropped by Chameleon and used in crafting Camouflage Armor

 Camouflage Armor: Crafted using Camouflage Dye and Leather Armor. It's color will change just like a chameleon when worn! A full set will allow the player to sneak past mobs as it significantly reduces their detection range towards the player.

Camouflage Armor Recipe:

  Spider Egg and Spider Egg Shell: Spider Egg is dropped by Mother Spiders. Can be thrown to get a tamed Baby Spider and a Spider Egg Shell. The shell can be used to retrieve the Baby Spider (right-click them).

 Raw and Cooked Dodo: Dropped by Dodos. Cooked Dodo has very high saturation and hunger values.

Dodo Egg: Dodos lay these. Small chance to spawn a baby Dodo when thrown.

Wonder Sap: Dropped by Grove Sprites. Also can be gained by giving them Bonemeal. Wonder sap can be used to convert one type of logs into another.

Wonder Sap Recipe:

 Mystery Eggs: Rare drop by Primitive Mobs Creepers. I wonder what they do?

 Goblin Mace: Rare drop by Goblins. This mace reduces the durability of one of the opponent's armor pieces by 10% each hit!

Mimic Orb: Joke item dropped by Mimics. Can be used to convert a normal chest into a Mimic chest!

The config can be accessed from the menu in-game. 

Currently it contains the following options:

- Enable/Disable each mob (requires restart)

- Specialized settings for specific mobs:

-- Enable/Disable the Miner Profession in villages

-- Enable/Disable Lost Miner villager sounds

-- Enable/Disable Festive Creeper terrain destruction

-- Enable/Disable Trollager terrain destruction

-- Enable/Disable if a Traveling Merchant can settle by bribing

-- Enable/Disable if Mimics should generate as chests

-- Enable/Disable if a Traveling Merchant can open doors

-- Enable/Disable Dodo grass to mycelium conversion

-- Enable/Disable if Rocket Creepers should jump even if they don't have room to do so

-- Enable/Disable if Haunted tools should drop tools with full durability

-- Enable/Disable the addition of increased vanilla mob spawns

-- Adjust the maximum amount of Baby Spiders the Mother Spider can spawn with

-- Adjust the chance a tameable Treasure Slime can spawn

-- Adjust the chance a Filch Lizard can spawn with loot

-- Adjust Mimic generation rate

-- Adjust the amount of emeralds a Lost Miner will give as reward

- KodaichiZero for making the original KodasCreepers, Spider Family, Brain Slime and Grove Sprite

- Glow for the BlazingJuggernaut model

- Gibea for the Traveling Merchant model

- Choonster and diesieben07 for 1.12 source code reference

- Vazkii for helping with the transition to 1.12 and fixing issues

- SparcDoctor for ideas and support

- Lykrast for setting up the ftb wiki pages

- And me, Daveyx0, for the design and implementation of the features :P