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Player2 AI NPCMinecraft mod for 1.21.1

This is not just another companion mod; it is a live showcase of the PlayerEngine framework, built to fundamentally change our perception of AI NPCs in Minecraft.

newest supported 1.21.1Adventure RpgWorld Mobs
Latest version
player2npc-neoforge-1.21.1-1.4.0.jar
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Fabric, Forge
Licence
not stated
Downloads
207.1k
Updated
2 mo ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Player2 AI NPC declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Fabric, Forge21+declared8 Aug 2024
1.20.1NeoForge, Fabric, Forge17+declared12 Jun 2023

Download

From Player2 AI NPC’s own host. Nothing is re-hosted here.

All 38 releases
player2npc-neoforge-1.21.1-1.4.0.jarrelease17 Jul 2026

player2npc-neoforge-1.21.1-1.4.0.jar · 1.1 MB · for 1.21.1

Download latest
5baafa898181…
Older versions24
  • player2npc-fabric-1.21.1-1.4.0.jar17 Jul 20261.21.11.1 MB3 downloads092af783c0f5…Get
  • player2npc-forge-1.20.1-1.4.0.jar17 Jul 20261.20.11.1 MB3 downloads0d6ab0d7f004…Get
  • player2npc-fabric-1.20.1-1.4.0.jar17 Jul 20261.20.11.1 MB2 downloads06cb84b2b9ca…Get
  • player2npc-neoforge-1.21.1-1.3.0.jar17 Jun 20261.21.10.1 MB12.9k downloadsb7ff2ff16ff8…Get
  • player2npc-fabric-1.21.1-1.3.0.jar17 Jun 20261.21.10.1 MB2 downloadsdb8a0e40c4ed…Get
  • player2npc-forge-1.20.1-1.3.0.jar17 Jun 20261.20.10.1 MB2 downloads4a9f9378f962…Get
  • player2npc-fabric-1.20.1-1.3.0.jar17 Jun 20261.20.10.1 MB2 downloads621e8fc1c48e…Get
  • player2npc-neoforge-1.21.1-1.2.1.jar16 May 20261.21.10.1 MB240 downloadscace1b09b0a8…Get
  • player2npc-fabric-1.21.1-1.2.1.jar16 May 20261.21.10.1 MB2cab623bad34…Get
  • player2npc-forge-1.20.1-1.2.1.jar16 May 20261.20.10.1 MB154 downloads6beeb7b8cb93…Get
  • player2npc-fabric-1.20.1-1.2.1.jar16 May 20261.20.10.1 MB25ce2f9d2eaf…Get
  • player2npc-neoforge-1.21.1-1.1.8.jar6 May 20261.21.10.1 MB1.3k downloads636b79c4d199…Get
  • player2npc-fabric-1.21.1-1.1.8.jar6 May 20261.21.10.1 MB5cde5cfcf289…Get
  • player2npc-forge-1.20.1-1.1.8.jar6 May 20261.20.10.1 MB4f7601790b0e…Get
  • player2npc-fabric-1.20.1-1.1.8.jar6 May 20261.20.10.1 MB08063cbcdd56…Get
  • player2npc-fabric-1.21.1-1.1.7.jar28 Jan 20261.21.10.1 MB488 downloadse77aed18b98d…Get
  • player2npc-neoforge-1.21.1-1.1.7.jar28 Jan 20261.21.10.1 MB4322d2b431ac…Get
  • player2npc-forge-1.20.1-1.1.7.jar24 Jan 20261.20.10.1 MB3.7k downloadsfc866ccf39c5…Get
  • player2npc-fabric-1.20.1-1.1.7.jar24 Jan 20261.20.10.1 MB97646aa63331…Get
  • player2npc-neoforge-1.21.1-1.1.6.jar20 Nov 20251.21.10.1 MB15.1k downloads87c6cdeb5449…Get
  • player2npc-fabric-1.21.1-1.1.6.jar20 Nov 20251.21.10.1 MB2c7a72ebf6e7…Get
  • player2npc-forge-1.20.1-1.1.6.jar20 Nov 20251.20.10.1 MBa9ea211c3ae7…Get
  • player2npc-fabric-1.20.1-1.1.6.jar20 Nov 20251.20.10.1 MB593b76229ca6…Get
  • player2npc-fabric-1.21.1-1.1.5.jar16 Nov 20251.21.10.0 MB327 downloads788680301e69…Get

Frequently asked

Does Player2 AI NPC work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Player2 AI NPC declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Player2 AI NPC support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Player2 AI NPC support?

NeoForge, Fabric, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Player2 AI NPC?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

How do I install Player2 AI NPC?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Player2 AI NPC safely?

Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Last checked 1 mo ago against CurseForge. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .