How to download/play mincraft - the crafting dead?

I haven't got any type of minecraft at all and I'm unsure where i buy/download mincraft and the crafting dead from. I have researched this but i'm still unsure what to do to get minecraft and eventually play the crafting dead. It would be really helpful if someone could answer with a step by step guide from the very beginning as i have no type of minecraft at all! THANK-YOU!

Added (1). Sorry the 'mincraft' is a typo.

It's Minecraft, not Mincraft. Anyways, you need to buy minecraft from minecraft.net. The Crafting Dead seems to be a mod. It's free.

I was looking for a free download Minecraft I found it here;

Minecraft is quite an addictive game and if you can't get enough of this application, then you can have a get sneak preview in this beta version. In this pre-release, the fundamentals of the game did not change at all.
It's a really nice game.