Stellarity

The mod changes the End dimension at its core. Island terrain is no longer held to a single height, so shapes vary widely. A total of 23 new biomes were added, among them four rehauled vanilla End biomes. Biomes fall into four groups: Fields, which are open and mostly grassy; Barrens, which are hilly and desolate with a small range of blocks; Forests; and Frozen, which are sub-variants of existing biomes in a white palette. The fantasy style mixes a desolate dimension with strong magic themes rather than a Dungeons-style expansion or an alien dimension.

After the Ender Dragon is defeated, the Altar of the Accursed becomes active. It is a late-game crafting station with no interface: the right ingredients are placed on top of it. The wiki lists most recipes. The mod adds at least 40 new items, including potion variants, food, weapons and four armor sets, each with its own effects. Several weapon abilities are inspired by Terraria rather than vanilla weapon design.

Stellarity is a mod that servers must run, while players may add it to get the content on their own clients. It is published for Fabric, Forge, NeoForge and Quilt with a data pack option, across 18 release versions, 1.20 – 26.3, and snapshot builds are published. It is released under a custom license and is not open source. Its required-by list includes Boss Checklist - Stellarity Compatibility and Stellarity x True Ending ~ Patch.