
🛡️ AntiAltGuard
Shield your server from alt accounts, VPN abuse, and identity spoofing. AntiAltGuard is a lightweight, lifesteal-friendly plugin designed to detect suspicious logins, block VPNs, and give server owners full control over player identity management.
🔍 Features
- 🧍 Alt Detection: Flags accounts sharing IPs or login patterns.
- 🌐 Anti-VPN System: Blocks players using VPNs or proxies via external API checks.
- ⏳ Join Cooldown: Prevents rapid account switching.
- 📝 Whitelist & Ignore Modes: Fine-tune who can bypass alt restrictions.
- 📣 Custom Alerts: Notifies staff of suspicious activity.
- ❤️ Lifesteal Compatibility: Commands respect health-based mechanics.
- ⚡ Lightweight & Fast: Minimal performance impact, optimized for all server sizes.
🎯 Designed for Small Public SMPs
AntiAltGuard was built with small public SMPs in mind—where fairness matters most. It prevents players from abusing lifesteal mechanics by creating alt accounts to farm infinite hearts. With IP tracking, health-based restrictions, and smart monitoring, your server stays balanced and competitive.
💬 Commands
- /antialtguard ignore : Allows a player to create alt accounts (adds to ignore list).
- /antialtguard moniter : Restricts a previously ignored player from making alt accounts.
- /ipunlink : Unlinks a player’s IP so they can shift accounts. Requires 10 hearts, making it lifesteal-friendly.
⚙️ Configuration
- Enter your email-id to turn on anti vpn.
🧠 Why Use AntiAltGuard?
Alt accounts and VPNs can bypass bans, exploit lifesteal mechanics, and disrupt fair play. AntiAltGuard gives you the tools to fight back—without bloating your server or overwhelming your staff.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as AntiAltGuard-1.0.jar — drop this file into the mods folder
- Download size: 24 KB
- Download link checked 20 Sept 2026 — working
These come from our own check of the pack file, not from the source page.