Do you miss the Alpha days?
If so, this mod is for you!
The Classic Days mod adds Alpha minecraft back into the game as another dimension. Mine blocks such as "Classic Log" and "Classic Cobblestone" and enjoy classic mobs.
Use JEI to find recipies, Maybe you will find something your not supposed to.
The portal is crafted with Classic Reactor Cores and is ignited with a flint and lapis.
Portal Igniter Crafting Recipe:
Although the Classic Mod is not finished yet - Something Big is Coming!
Image above is part of the brand new Nether Evolved mod.