Factions Minecraft Servers for 1.21
Every Factions server on the list that runs Minecraft 1.21, ranked by votes this month. Point releases count, so a server reporting 1.21.4 is listed here too.
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Clear filtersClaim land, build a base, expect it to be raided
Factions is the raiding gamemode. You make a faction with friends, claim chunks, fill a base with obsidian and hoppers, and then somebody finds it, breaches the wall with a TNT cannon and takes everything inside. Power is the currency: you lose it when you die, and a faction on negative power can be claimed over by anyone.
Almost every server layers extras on top — custom enchants, envoy drops, king-of-the-hill events, printer mode for building, and a schedule that tells you when the fighting happens. Seasons usually run four to eight weeks, end with a payout, and then the map wipes and everyone starts again from a wooden pickaxe.
Going in solo is rough, because factions rewards organised groups with a rota. Join with people, or join a faction that is recruiting. Read the rules on cannoning, insiding and alt accounts before you build your first base: those three differ wildly between servers and they define what counts as a fair fight.
What 1.21 added, and why it took servers a while to move
Tricky Trials landed in June 2024, and its centrepiece is the trial chamber: a generated copper-and-tuff dungeon full of trial spawners that stop producing once you clear them. Run one with an ominous bottle active and the vaults pay out better. It also brought the Breeze, the Bogged and the mace, which hits harder the further you fall onto something.
For a server, the crafter mattered more than any of that. Automated crafting had been a modded feature for a decade, and having it in the base game changes what a redstone farm can do without a single plugin. Copper bulbs and the full tuff block set filled out building palettes at the same time.
The 1.21 line kept moving after release — the pale garden and the creaking arrived in 1.21.4, and later point releases added more again. That is worth remembering when you read a listing, because 1.21 can mean anything from 1.21.1 to the newest patch. Most servers run Paper behind ViaVersion and accept a range of clients, so connecting is usually the fastest way to find out.