The Erebus focuses on adding a whole new dimension to Minecraft, with many new creatures to slay, things to create and lands to explore. Other things, such as an in-depth magic system and many dungeons are planned as well.

This dimension is designed to provide full survivability, giving you the ability to start from scratch there if you so desire. This is, however, not recommended, as mobs are a lot tougher. The mobs are rather diverse in their AI, and even the passive mobs are not completely harmless.
This mod plays well with other mods, and is designed for compatibility with both magic and tech mods. You can turn on a variety of ores commonly used in mods, such as Copper, Tin, Silver, Lead and Aluminum, so you never have to leave!

Discord

We also have our own Discord channel! Come discuss the mod, ask questions or simply chat with the devs (we're around rather often). Be sure to drop by!

Quick introduction:

This is what you'll need to do to get to the erebus:

Craft an Offering Altar (Smooth stone in the corners!):

The offering altar takes 3 items in and crafts them into 1 (You can use NEI to look recipes for it!). However, the only recipe you need to worry about now is the one to craft the Gaean Gem which is part of the portal activator recipe. You'll need an obsidian, an emerald and a diamond! Right-click the altar with those items in your hand to put them in.

To take an item out you'll need to shift right-click with an empty hand and the item will pop right out.

Once you have the gaean stone craft the portal activator (now named Staff of Gaea) thusly:

Now onto actually building the portal!

You'll need a Gaean Keystone:

Build a portal frame out of nearly any block (except leaves). You can get creative here, any shape will do. Doesn't even need to be vertical!

Now fill that baby up with leaves (any leaves should work, even from other mods):

Place the keystone in front of the portal:

And now right-click the keystone using your Staff of Gaea!

Now jump through and have a blast! ~~(or die in one)~~

Terms of use:

By downloading the mod, you agree to the following terms of use.

You are allowed to:

Use the mod, create videos and screenshots
Share the mod by reffering to this topic
Decompile and modify the mod
Add the mod to your modpack, public or whatever (do link back to the MCF page please).

You are forbidden to:

Reupload the mod or a modification of it
Claim the mod or any part of it as yours
Profit from the mod in any way

Be sure to check out our MCF page.