Frost
Frost is an addon that overhauls all Ice Plains biomes in Minecraft. With Frost installed, you can expect to encounter new enemies, blocks, loot, bosses, structures, added lore, and sooo much more! Ice Plains are no longer flat and boring biomes! If you are looking for exploration, then you've come to the right addon! With the recent update for Frost, V2.1. You can expect even more exploration than ever before by heading into the brand new overhauled caves!
If you'd like to see the new content added in by Frost V2.1 in action, feel free to watch the trailer below :)
In Game Screenshots on What to Expect

Overhauled Ice Caves! Filled with brand new blocks, mobs, items, structures, and more goodies!




Surface wise, you will also find the things mentioned above, and Frostwood Trees. A new tree type with new wood.

Cave Generation/Ores
As of Frost V2.1, the caves have been overhauled entirely and are now Ice Caves. These Ice Caves are meant to be harder than normal caves, so you will not see as many ores. However ores do generate, but not every ore does. There are also 2 new ores you can find when exploring. You can see the ores further below.
The Ice Caves will replace all Stone/variants so you will only see Frozen Stone/variants. Not only that, you will see lots of Ice and a new snow block, Iced Snow which is snow but harder to break.


The blocks in the image above will randomly generate in Ice Caves either on the floor or ceiling. Some of these blocks drop loot or can be interacted with.

And, finally we have the 4 ores that generate in caves.
Why not all Vanilla Ores you may ask? Well, Frost, how I envisioned it, was always suppose to make the Ice Plains biome a hard, but survivable biome. I only added the necessity ores, Iron for tools and armor, and gold for Piglin bartering. You can get other ores however such as Diamonds and Lapis through mobs, pots, and loot crates. Any ore that does get added into the future however, will most likely be a modded ore such as the ores all the way to the left. But, just because Iron and Gold generate, doesn't mean it's common. They are very rare, and Iron and Gold ores will not drop their raw counterpart. Instead, they will drop as a block, and you will need to smelt it just like the original ways of smelting.

This ore, is Frozen Ore. This will be the most commonly generated ore you will find in Ice Caves.
When you mine it, it will drop as a block. You will have to then smelt the block in a furnace like the original way of smelting ores was prior to 1.18. Once you've smelted the block you will get a Frozen Ingot. You can then check out it's recipes as the ingot has the "Material" tooltip. (Material tooltip has more info in Special [Tooltips] as a separate section to read).

The next ore is Arctic ore. This ore is rare and only generates below 0.
This ore when mined, will drop 1-4 Arctic Crystal Shards. You can craft an Arctic Crystal using those, and with that crystal, you can upgrade frozen gear! (Frozen gear from Frozen Ore.) The Special Items/Blocks section explains the Frozen and Arctic gear recipes a lot more in depth.
Mobs/Bosses
Frost adds in many new hostile/passive mobs and some bosses that you can find and defeat for brand new loot, weapons, armor, and more.
Some mobs drop secrets which leads to other secrets.

Frozen Zombie. Spawns on surface at night and spawns underground in low light levels. Drops some Frozen Rotten Flesh which can be defrosted for normal Flesh. This zombie variant will also inflict slowness on you if it manages to hit you.

This is the Frozen Undead Miner. Spawns underground. Drops a gold helmet sometimes as well as a Glove. This glove can be used to make a few weapons, one of which can be upgraded.

This is the Damned Soul. Spawns rarely underground and it will attack you from above. Drops a Frozen Key and some Ice Essence.

This is the Frostbite Spider. It will spawn on the surface at night or in underground Ice Caves in dark places. They will inflict slowness if they hit you, so beware as they will quickly eat you alive in groups. Killing them makes them have a chance to drop basic spider loot as well as Frostbite Spider Venom which is used for a few weapons.

This is the Ice Elemental. They shoot ranged projectiles at you which can sometimes slow you down. They spawn in decently lit areas, and are attracted to Frozen Crystals (all pictured above). These guys are your best bet at farming for Ice Essence as that will be used in a lot of recipes.

This is the Frozen Chest. A rare spawning mob that spawns underground. In order to interact with it, you will need a Frozen Key. It will then consume the key and open giving you loot!

However, there is a 25% chance that the chest will come to life as a mimic and try to eat you! Killing the mimic will yield more loot than you'd normally get from the Frozen Chest as well as a secret item sometimes.

This is the Arctic Necromancer. A miniboss that will spawn new ancient frozen warriors to try and stop you. The boss can prove difficult if you let him keep spawning minions. Killing him will make him drop some Frost related goodies and a few secret items.
His minions have a chance to drop brand new equipment too known as Frozen Ancient Gear.

You will need to make his spawnblock in order to get him to spawn in the first place.

This is the Frozen Rune. To get one to spawn, right-click the block it's standing on. Doing this will spawn in 1 rune.

Insert the Unknown Rune inside it to start the Rune Event. Right click it when it's emitting energy to actually begin it. Upon activation you will need to face the trial in which the Rune will spawn in Frost Mages (pictured above, ranged entity) for around 15-25 seconds.

After the 15-25 seconds is up, the Rune will play a unique animation and after a few seconds the Arctic Guardian will spawn in. This is a boss with 2 phases. First phase 1 pure melee with high attack. He moves slow in this phase, so you should easily be able to outrun him. And, the second phase it will become airborne and fire ranged projectiles at you. He can also spawn in Ice Elementals during this phase which will also shoot at you.
To make the fight against him easier, carve out a nice flat area near the Rune, then trigger the event. Once the boss spawns, run out into the open and begin fighting him.
Special Items/Blocks
Frost has numerous amounts of special items, weapons, and blocks. I will list the main ones here, the rest are for you to discover! (There are a lot of secret items :) Most of these are craftable, recipes will eventually appear in the crafting table after you get a material for one.
ITEMS:

This is the ice gem. This gem can be used for a lot of magic weapons introduced with Frost, and is used in building a spawner for the Arctic Necromancer.

This is the Frozen Key. This item cannot be crafted, but it's obtained from pots (rare), Arctic Guardian (uncommon), and Damned Souls (best farm source, 20% drop chance). You can use this to then open the Frozen Chest for loot.

This is the Ice Pick. It will be your best friend when mining deep underground in Ice Plains as there is a lot of ice the lower you go. There are 3 variants to this. Iron, Frozen, and Arctic.

This is the Unknown Rune. This when held in hand and right-clicked on the Rune will trigger the Rune Event. IT will be consumed on use. So use it wisely. The items in the recipe are known as Rune Fragments. You get these from various loot sources such as pots, mobs, structures, and from the Arctic Necromancer.

This is the Glove of Frost. This is a unique ranged weapon that can be upgraded two times after crafting it initially. The items on the far corners as known as Frozen Shards. Those are obtained from the Frozen Crystals that generate commonly in negative y levels. The middle side items is Ice Essence which drops from most Magic related Frost mobs (frost mage, ice elementals, etc..)

Or, instead of going for that path, you can go for another unique upgrade path for the glove and turn it into the Venom Glove. This glove is weaker than the above glove, but it doesn't ever break and it inflicts fatal poison for a few seconds after every hit. It's good for doing chip away damage to bosses or other tougher mobs. (The item in the middle is Frostbite Spider Venom.)

This is Frozen gear. After smelting the Frozen Ore block in the furnace/variants it will give you an ingot. That ingot can then be used to craft Frozen Gear which can later be upgraded into Arctic Gear. (It's pretty much crafted like vanilla gear)

This is the Arctic Crystal. After mining the ore, you can combine 9 to make 1 crystal.

The crystal(s) can then be used in upgrading Frozen Gear into Arctic Gear, which is much stronger by netherite in terms of protection and damage, but weaker in terms of durability. Arctic Crystal has the material tooltip so it will therefore appear in the crafting table UI (only crafted at crafting tables).

You can also upgrade your weapons/tools into Arctic. This recipe will pretty much be the same tool wise (just swap your sword in with your desired Frozen tool). Only armor is different.

This is the Frost Log Tracker. This will log all discovered Frost logs. You get one for free when entering the world, however you can craft one with the recipe above.

Right-clicking the book will show the display above. Unlocked logs will replace the ??? and reveal the explorer's name.

The Frostwood trees give off a new block when broken. You can use that block to make planks which can make the most basic wood items such as sticks, tools, a few blocks.

This is the Frostwood sapling. You can sometimes get it by breaking frostwood leaves. It can be accelerated in growth time by using bonemeal.

These are Frost loot crates. They spawn only in Frost related structures. There are 3 tiers of loot in them. From worst to best (going from left to right)

Mentioned with the Ice Elementals were Frozen Crystals which attract them. Here is a recipe that you can use to help when farming them. Its for the Frozen Crystal. They provide max light level and will attract Ice Elementals.

This is the Ancient Frozen Alchemy Table. It spawns in a rare lore structure.

It will allow you to concoct new potions and weapons. (Potions crafted here will yield x3 the amount instead 1 at a crafting table.) These potions provide useful benefits with mining or fighting bosses. The weapons may also prove useful. Recipes shown if you have a required ingredient.
Frost Tooltips
All items in Frost now have special tooltips that you can see when hovering over the item. This is just to help people out so they can better understand what a certain item is used for.


There are a lot of new tooltips, here is what they all do.
Material: Can be used in crafting, and you can see items that involve that particular item in it's recipe
Defrostable: This item can be defrosted to get it's vanilla counterpart. You can defrost these items in Furnaces/variants, and campfires (for food items)
Consumable: Can eat/drink for certain effects
Throwable: Can be thrown such as a snowball, ender pearl, etc
AoE Damage: This item will hurt nearby entities.
Ranged Damage: This item shoots projectiles such as a bow.
Summon Damage: This item summons something, and that's how much the said summon will do.
Impact Damage: For special weapons, damage upon impact before a special effect triggers.
Currency: Can be used for trading (There is one item known as the Ice Coin that has this, however it has no use as of V2.1.)
Structures
Frost has many brand new structures that you can find spawning in the Ice Plains biome. Some spawn on the surface and some spawn underground. Most structures have loot, new mobs to fight, some have lore books that you can collect and read, and other structures lead to a boss.

This structure above is home to a new boss, right-click the boss to spawn in a rune and insert the Unknown Rune to trigger a boss event!

This is the Bandit Camp. Home to Tundra Bandits which will team up and try to take you out. Has some nice loot if you successfully defeat the camp.

This is the Frozen Ship. A mysterious ship that has somehow found it's way underground. Has some pots and loot crates to destroy. Can spawn exposed or hidden.

One of the 7 lore structures. They all have a different lore book, basic loot, and sometimes secret items in them.
Download Below, enjoy: