First large build upload in a while! I plan to keep working on this for a while, so updates will come in several phases as i hit different milestones.

Phase One: Structural (base pyramid and underground structure complete, begin completing pathways between levels)
Phase Two:Building (finish adding all levels, and complete secondary structures on all levels)
Phase Three: Details (finish adding aesthetic touches to all structures/levels, and add all mobs/npcs)
Phase Four: COMPLETION! (add mods, deadly sun, custom mobs, etc)

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Phase One is completed barring any further links between levels that will be added as those areas are completed. Currently working on Phase Two right now; fleshing out the ruined city at base level, renovating farms layer. The plan is for the pyramid to become more "alive" as you ascend, so undead mobs and ancient ruins at the bottom, but villagers and farms toward the top, etc.

Players spawn in survival, and will be able to collect some basic things for their survival once they reach the pyramid. The world is set to peaceful, as several areas are too dark to be safe. Be sure to keep an eye out for caves that link up the different levels of the pyramid! Several paths also lead from the base pyramid out to hidden areas via cave systems (including a hidden village!)

-Science