In the Alphacraft mod, expect to go on a nostalgia trip, as some of the places in this mod are very faithful to the early versions of Minecraft. You can collect some new ores, like beta, and the old iron ore, then you can use them to craft a portal to the old overworld.

The "Old Overworld," the biome is the "Alpha Plains"

Beware, as some things are not the same, as you will find a new miniboss called, the "Giant." Killing this boss will drop the "Giant core."

With this giant core, you can craft the Nether Reactor Core. Now, you may be familiar with this, but once you build a certain structure with it, you have to activate it.

Now as you may have realized, cobblestone isn't the same, and that's because practically, all the blocks in these dimensions are special, old/alpha variants, and you can use these to make other old things.

From here, you can activate the nether core, to spawn a nether spire, which I built myself, so it should be the same as the old, pocket edition version. When you activate it, (all the following is the same as the old nether spire) different items will start to spawn, and some old, zombie pigmen will too.

THE FOLLOWING INFORMATION IS NEW, SOME OF IT IS NOT IMPLEMENTED, SO DON'T EXPECT IT TO BE AS EXACTLY DESCRIBED!!!

When you blast the netherrack, you get old obsidian, or you can try to find a shack, where you will find a Mojang Employee, who you can use, to transport items between old, alpha, and new variants. Make sure it isn't a Microsoft Employee, who will steal any old, or alpha items you give to them.

You can view the development on this playlist

_FN10_