The LiteBlock Mod

Making Dirt and Grass:

There are two ways to make dirt, with cobble or composting. Composting is just simply putting 4 apples or saplings in crafting. With cobble, put cobble in your crafting until it turns into Coarse Dirt. Place the Coarse Dirt down on the floor and hoe it into regular dirt. Pick up the dirt and, in your crafting, put it with a water bucket. Done.

World Fragments:

Most hostile mobs will drop a Fragment Piece on death. Craft four of these into a World Fragment.

Saplings:

If you have a Fragment Piece, just place it with a sapling to cycle through the saplings.

Leather:

Smelt rotten flesh to get leather.

String:

You can turn 1 wool into 4 string.

Clay:

Craft clay with one sand and a water bucket.

Saddles:

AAA

ABA

C  C

A: Leather

B: String

C: Iron

Vines:

Put leaves in a ladder shape.

Sky Sword:

ABA

ABA

  C 

A: World Fragment

B: Iron Block

C: Stick

This sword can one shot Zombies, Creepers, Spiders and the such. Since there's no way to get iron other than zombie drops, you will probably need a farm.