Epoch Stages

Stages are configurable checkpoints in a modpack's journey, and content locked behind a stage stays hidden or unusable until the player's stage is reached. Locks cover item stages that keep items uncraftable and unusable, including items in ejected inventory, and recipe stages that gate a single recipe. Mod stages lock an entire mod namespace, with per-item and per-recipe exceptions, and hide locked entries in JEI and EMI. Blocked items can be removed permanently, which can strip vanilla tools and armor except netherite, and gear from other mods can be removed the same way.

Ore stages can swap a locked ore for a substitute so that, for example, iron ore drops coal until the stage is reached, then returns to the real ore instantly. Jade or WAILA reads the real block, since the substitution is only a rendering trick and is reversible. Mob stages keep gated mobs from spawning, and dimension stages block access to dimensions until they are reached. Prerequisites build real progression trees, so a player cannot reach the Bronze Age without finishing the Iron Age first.

Progress is stored per player, and for an FTB Team it is shared across the team and the server. The framework is server-authoritative and multiplayer-safe. Epoch Stages is not open source and is released under All rights reserved, and the public links currently point to a wiki.