This mod gives some much needed love to vanilla caves, adds stalactites, stalagmites, vines, glowing mushrooms, icicles and there's more to come.

The Shadow World mod is a mod, which adds a dark new dimension,

two new bosses and a lot more. Like over 100 new Items, more than 30 new Mobs and a bunch of new Mobs hostile and friendly. It won't affect over world world generation.

ATG adds a new world type which entirely replaces the base method of creating the world.

Vanilla generation creates "blobs" of land within the world and assigns random biomes to each, shuffling them around a bit to add rivers and such. The height and shape of terrain within these areas is determined by the biome, not the rest of the world.

ATG completely changes this, instead creating height, temperature and moisture maps for the world and deriving the final biome based upon those. Higher areas are colder, areas away from the sea and where the temperature is high tend to be dryer.

Using the generator config, any biome from any mod can now be added to ATG. Mods which used to use the API to insert their biomes still can, as it means they will appear in the default configuration, and can add their own terrain altering GenMods to be used by their biomes.

Make sure to select "ATG - Alternate" as the world type when making a new world.

What this mod adds 25 types of Quicksands? That naturally generate around whole world. And if you don't like any one particular type, you can toggle it's generation off in the config file.

What mod is contain:

• • 25 types different Quicksands with its naturally generations.
  • 3 Mobs Slimes, that only want to devour you if you will be too careless.
  • New Structure - Desert Tombs, that contain many useful loots but also have dangerous traps.
  • Ultimate Covering System that covers every players and shows how dirty they will looks after taking an bath in an types. This System is compatible with most Animation Mods, but also it's switchable option.
  • Unlike other mods you can swim under surface of Quicksand without any risk of taking damage, but when you would out of breath you will start dying in it. Because Quicksand is not Water you cant use any Water Breathingstuff in it. This is also switchable option.
  • Stuff/Items/Tools that increase your chance successful hiking without being a victim of deadly nature traps, as:
    • Long Stick - using as walking stick for testing grounds in front you.
    • Wading Boots - that allow you walking on swampy surface without worrying (Almost  )
    • Life Jacket - that gives you additional buoyancy.
    • Rope and Grappling Hook - that allow you get out of some sticky situations or help other players.

The main reason that I developed this mod is that the standard types of quicksand, like the ones in BiomeOPlenty have cobweb physics. That means that if you're stuck in it, you have to dig the blocks under you, before you hit solid ground. Also you can fly away or use a hook, teleport or something else. But this is too boring and annoying!

In contrast of this, my Quicksand has a more complex structure that is described below.

• Lots of randomized structures! Optional - Currently: 59 in the overworld, 6 in villages -- Incomplete List
• Server-Side only mode: The mod is not actually required on clients in lightweight mode
• Create your own structures  (Supporting blocks, TileEntities, and Entities)
• Let your structures spawn in natural terrain, in villages, at any specific place in the nether and more!
• Export and import structures (between worlds - this supports modded content too)  - Now with schematic support
• Easy to use GUIs - No silly text file editing 
• Previews make it incredibly easy to position your structures before committing to the changes
• Easier building with special tools and commands
• Randomized structure contents, like chest loot and cave generation
• Generate structures within other structures
• Randomized, modular mazes with lots of creative freedom
• Spawn Structures 

Features
Random generation for each ship. A config with options for ship material, rarity, and min/max distance between ships.

The larger the ship the better the loot (rowboats have nothing, they are purely cosmetic).

The sloop and next ships I plan to add were designed by MCElex. You can check out more of his ships here.

New to v1.6.0, the Piranha! A hostile mob that will swim in a school. They are quite weak (a diamond sword kills in 1 hit) and dont do much damage on their own. But large shipwrecks can have 20+ piranhas swimming around.

Also new, the Diving Suit! The helmet adds nightvision and a full suit adds the ability to breath underwater. It will also slow you down on land.

This Mod Adds Pirate related items to Minecraft. This mod will add in tons of content to make you feel right at home in a Pirate’s life. Craft your Pirate weapons to take on the Undead Pirate army in this awesome mod!