Feature List

Where each part of Obsidian stands. Documented features link to their page.

Working

Blocks — types, variants, shapes, settings, block state, conversions, templates
Items — settings, components, templates, per-state models
Item tiers and armor materials
Ranged weapons — bows, shortbows, crossbows, heavy crossbows, tridents
Projectiles — thrown items and custom arrows, with their own flight, trails, impact events and 3D models; bows and crossbows can name their own ammunition
Portals — frames linking two dimensions, with the far side built on arrival
Patterns — block shapes that summon, transform or trigger when built and activated
World events — staged fights and sieges with a boss bar, mob waves with equipment and stats, guards to protect, tiered rewards, failure conditions, and rifts built from an event, a portal and a block
Tools — the vanilla four plus paxels, hammers, chisels, brushes, fishing rods
Palettes — one item, many colour schemes, without registering a variant per colour
Food components and food items, including effects, eating speed and sounds
Creative tabs, in both the current and legacy formats
Events on items and blocks
Status effects and potions
Particles — custom particle types, drawn from the pack's own textures
Chisel mappings and block convertibles
JSON entity models and animations
Pack assets and data directories, so a pack can ship tags, recipes, loot tables and advancements alongside its content
Content pack syncing from server to client

Scripting (.obs scripts and the script manager)
Block behaviour — seat, placement, power_source, repeater, container and lock are implemented; showcase, glowing and rotate are specified in the API and read by nothing

Structures and jigsaw pieces
Worldgen modification through biome loading
More station and redstone block types — lectern, grindstone, composter, jukebox, cartography_table, fletching_table, noteblock, piston, rails