Simpler Auth
Running a public Minecraft server means dealing with strangers, and strangers mean risk. If your server runs in offline mode, anyone can walk in using someone else's username and take over their stuff. Simpler Auth is a server-side mod that solves this problem by forcing players to register and log in before they can do anything meaningful on your world. It is lightweight, configurable, and built specifically for dedicated servers.
What Simpler Auth Does
At its core, Simpler Auth adds an authentication layer that sits between a player joining and a player playing. The moment someone connects, they are locked down until they authenticate. While unauthenticated, a player cannot send chat messages, destroy or place blocks, throw items, move or rotate, or even modify their inventory. That last point matters more than it sounds, since it stops griefers from dumping lava buckets or stealing from chests during the login window.
The mod is entirely server side. Players do not need to install anything on their client, which makes it painless to roll out across an existing community. It supports a wide range of Minecraft versions across the Forge and NeoForge loaders, so whether you are running an older 1.16.5 pack or a modern 1.21 setup, there is a good chance a compatible build exists.
Core Commands You Will Use
Everything in Simpler Auth runs through simple chat commands, which keeps the learning curve shallow for both staff and players.
- /register <password> <repeatPassword> creates a new account.
- /login <password> authenticates an existing account.
- /changepassword <oldPassword> <newPassword> updates your credentials.
- /onlineauth toggles optional online authentication.
- /2fa manages two-factor authentication settings.
- /simplerauth <unregister|disableOnlineAuth|reload> <player> gives admins control over accounts and configuration.
Features That Set It Apart
Plenty of login plugins exist, but Simpler Auth packs in options that usually require several separate tools. Sessions let returning players skip repeated logins within a set window. You can choose between global and local password storage, and decide whether online authentication is optional or forced. Regex support for both usernames and passwords means you can enforce your own naming and complexity rules instead of accepting whatever the mod defaults to.
Two-factor authentication is included, and there is even a dedicated 2FA-only mode for servers that want to skip passwords entirely. The mod also prevents the dreaded "Logged in from another location" kick, hides player positions from unauthorized eyes, supports multiple languages, and lets you set a minimum permission level for certain actions. If you have ever wanted a login system that respects your server's rules rather than fighting them, this is it.
Installing It on Your Server
If you are wondering how to install Simpler Auth, the process is straightforward. Drop the mod jar into your server's mods folder, restart, and edit the generated config to match your preferences. Because it is server side only, there is no client distribution headache. You can download Simpler Auth from its official project page and check the version list against your server's Minecraft build before installing.
For server owners who prefer a smoother setup, the foxygame.net launcher includes Simpler Auth in its add-on catalog, letting you install and update it alongside your other server tools without juggling manual jar files. It is a convenient option if you manage multiple servers or frequently switch between versions.
Who Should Use It
Simpler Auth is aimed at dedicated server operators running cracked or offline-mode instances, though it works fine on premium servers too if you want an extra layer of account security. Small friend groups may find it overkill, but any server with open registration and a public IP will benefit from the protection. The MIT license also means you are free to inspect, modify, and adapt the code to your needs.
Final Thoughts
Account theft and griefing are two of the fastest ways to kill a Minecraft community. Simpler Auth addresses both with a focused, server-side solution that does not require players to install mods or learn complicated systems. With registration, login, 2FA, session handling, and granular configuration all in one package, it earns its place in any serious server's mod list. Set it up once, and your players can focus on building instead of worrying about who might log in as them.
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