Minecraft's community-made mods add new custom features to the sandbox game. Hence, even if a feature in vanilla is not the most interesting, it can become worth one's time if a mod makes it useful.

Minecraft: Java Edition Deep Dark Experimental Snapshot 1 includes a ton of new features from The Wild Update, including the Deep Dark biome and Warden mob.

Mojang Studios is now rolling out the latest Minecraft: Java Edition snapshot, which continues to develop The Wild Update for release later this year.

Games Survival & Crafting Minecraft just launched add-ons, which are mods, not to be confused with the previous add-ons that were also mods, and won't replace mods for Minecraft Java ...