Extended Vanilla Endgame

Once a player reaches the endgame, a netherite tool, armor piece or spear can be upgraded through the smithing table, one level at a time. Each level needs an Upgrade Core built from a diamond, iron, gold and emerald block with crying obsidian corners and a netherite ingot at the center, and the cost doubles at every level until +10. Higher cores combine two cores of the previous tier with shapeless extra items. The Winged Netherite Chestplate lets the wearer fly, and an upgraded sponge lets the player drink lava. Items tagged eve:upgradable can be extended through datapacks, and a plain netherite chestplate cannot be upgraded.

The mod adds a set of features aimed at keeping the endgame occupied. Upgraded Shulker Boxes are crafted from a sponge and store other shulker boxes, but never another upgraded box, so nesting stays finite. The boxes come in 16 colours plus the default dyeable colour, and a water cauldron resets the colour while keeping the contents. Both item and placed block carry a small gold emblem on the lid. The mod runs on Fabric with Fabric API and needs Client and server installs for Minecraft 1.21.11 and 26.x. Java 25 is needed for 26.x builds and Java 21 for 1.21.11.