Install

Paper 1.20.5+ or Spigot 26.1+. Four minutes to your first fight.

Which build do you need? There are two, from the same Modrinth page, out together with the same features and the same config.

Paper 1.20.5 or newer, or a fork like Purpur: the ordinary one, with a plain version number.
Spigot or CraftBukkit 26.1 or newer: the one whose version ends in -spigot.

Pick the wrong one and FightBot says so at startup instead of half working. Folia is not supported. If your server is below 1.20.5, use 3.17.1 with the free LibsDisguises instead.

Download the jar

Grab the newest full release from Modrinth — the plain version on Paper or Purpur, the one ending in -spigot on Spigot or CraftBukkit. Betas are there too, but start on a stable build unless you are chasing a specific fix.

Open Modrinth

Drop it in and restart

Put the jar in your server's plugins folder and do a full restart, not a reload. The plugin writes its config.yml and botnames.yml on first boot.

On 3.17.1 or older, install the free LibsDisguises alongside it before restarting.

Spawn a bot

Join the server and run this. You get a bot with a random player‑style name at your feet.

/fightbot spawn

# or name it yourself
/fightbot spawn Kade

# or a whole crowd, up to 200
/fightbot spawn 10

Gear it up

Run /fightbot settings for a screen of every bot's head, click one, then Open gear. Or switch to creative and right‑click the bot. Give it armour, a weapon, and anything else you want it using. Or skip this and fight it bare‑handed.

Full slot list is in the wiki.

Point it at yourself

Now it hunts you.

/fightbot fight Kade YourUsername

# had enough
/fightbot stop

Permission: everything sits under fightbot.use, which defaults to OP. Grant it in your permissions plugin to let other people spawn bots.

On a network? Put the same jar in your Velocity or BungeeCord proxy's plugins folder too, and the servers link up to it by themselves. Only the servers you want bots on need FightBot. The Networks section of the wiki has the whole setup.

Want the bots to answer you? With Simple Voice Chat on the server, a bot you talk to in voice chat answers out loud. It needs a free key from Groq (or Gemini, or OpenAI): setting that up takes about ten minutes.

Rather click than type? /fightbot web in game gives you a link to the editor, where you can change any setting, run the bots that are already there, upload skins and voice lines, and read the debug logs.