Adds AI to PVP - for free!  Using free models from OpenRouter ARAI PVP is able to fight you to improve your PVP skills.

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ARAI-PVP

AR AI PVP mod for Minecraft Java!

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ARAI PVP is an advanced combat training mod that brings an intelligent, player-like PvP bot right into your Minecraft world! Instead of practicing against predictable vanilla monsters, you can spar with a smart bot to dramatically improve your PvP skills.

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Features & Player Experience ⚔️
Intelligent Sparring Partners: The mod adds a custom bot powered by fast local combat logic and optional OpenRouter AI models.

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Experience: You get to fight an opponent that uses real PvP tactics, making single-player practice feel like a real multiplayer duel!

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Adjustable Difficulty Levels: Use a simple command to spawn bots ranging from Easy all the way to Nightmare mode.

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Experience: The game changes to fit your skill level, letting beginners learn the ropes and experts test their limits.

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Continuous Practice Loops: Set the bot to spawn in a "single" match or a continuous "loop."

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Experience: You can set up an endless training arena to practice your aim, timing, and weapon combos without having to reset the fight manually.

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Why Download ARAI PVP? 🚀
If you want to get better at competitive Minecraft PvP without jumping into a crowded server, this mod gives you a completely free, highly customizable AI sparring partner. It is the ultimate way to train your combat skills in your own world!

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ARAIpvp:

ARAIpvp is a Fabric mod for Minecraft Java 26.1.x. It adds ARAIpvp, a player-like PvP training bot that uses fast local combat logic with optional OpenRouter free-model tactic updates.

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Requirements:

Minecraft Java 26.1.x

Fabric Loader 0.19.2+

Fabric API 0.147.0+26.1.2 or compatible 26.1.x release

Java 25

The Gradle build uses toolchains and can provision Java 25 locally.

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Commands:

/araipvp spawn <easy|normal|hard|expert|nightmare> <single|loop> [model] starts a duel.

/araipvp end stops the current duel or practice loop.

/araipvp openrouter key set saves an OpenRouter API key.

/araipvp openrouter key clear removes the saved key.

/araipvp openrouter key status checks whether a key is configured.

/araipvp openrouter models refresh fetches current free model IDs.

/araipvp openrouter models list prints loaded free model IDs.

/araipvp openrouter models set sets the default model for commands.

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The default OpenRouter model is google/gemma-4-31b-it:free. The environment variable OPENROUTER_API_KEY is also supported and takes priority over the saved config key. If the key is missing when a player tries to start or open ARAIpvp, the mod shows a clickable prompt for the free key page: 
https://openrouter.ai/workspaces/default/keys.

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Github: https://github.com/realarbird/ARAI-PVP.