ROBLOX HAS TAKEN DOWN THE SYSTEM.

If it still works for you, I will gladly help with any issues you encounter or any questions you may have. However, I will not provide further updates and will work on Codename:Red with said planned updates.

The flagship system, using Nx2 as it's backend.

Comes with a lot of features from its' predecessors, Redefine:A 5 comes for development-friendly admin kit that has tons of advantages out of the box, as well as a beautifully crafted user interface powered by Roblox itself and a self-made framework controlling it all. You can read more about it in the official Devforum post.

You can get it from the Github only, as the moderation team in Roblox has taken down the system due to making the system have a require() within it allowing auto-update (calling the Module). yes, that's actually what was said

Project Lead; Sezei

Direct Contributors; Cytrexon, TheFuroYT, rivenaboveall

The UI-based "spin-off" "revival" of an older project that is best kept unnamed, using Nx2 as it's backend.

Originally known as AdminGUI Rewritten, Nano is a UI-Based admin panel which allows the users to use admin commands without the need for chat capabilities at all. Nano is Open-Source, and more info can be found here. It was also the first system to use Nx2 as its' engine, even before Redefine:A5.

Project Leads; Sezei, Cytrexon

This project has been deprecated and will not be updated anymore - all of the features apart from the panel itself already exist in Redefine:A5.

Easy Obby-type stage handler, based on Super Check Point!

Easily create obby games with better visuals than most of the other known stage handlers - as well as having a dedicated Health and Lives system built in.

Was made as a challenge for myself to make a system like that in the least amount of lines possible, but ended up being released as a kit.

You can get it here.

Project Lead; Sezei

Simple Spritesheet handler for Roblox UIs

Originally created as a way to handle spritesheets for icons and such in a much easier way than simply uploading tons of images as separate assets and somehow being stuck with a looping asset loader, this was made before Flipbooks were added to Roblox.

Project Lead; Sezei

An XP handler module made for portable use.

No real description, made really badly but the main focus was the usability.

You can get it here.

Project Lead; Sezei

The flagship system, using NxEngine as it's backend.

Redefine:A4 comes with new features such as customizable commands, a separate functions folder and a language handler.

Project Lead; Sezei

Superseded by Redefine:A5.

A project made to recreate the experience Person299's Admin had from the pre-2012 era of Roblox (Before Kohl's). 

Abandoned before any actual effort was put into it. Coded like 2012 as well. Not recommended for use, but can be a good way to see how systems worked at the time.

Project Lead; Sezei

Inspired by; Person299

Abandoned due to lack of motivation, old code, and a lot of clashing code due to the usage of setfenv() for "injecting code", breaking compatibility with modules. the idea behind it was cool tho

In the past, there was a project by crywink that allowed a super customizable system.

I have helped the development of it with multiple addons / commands, and even a whole Theme system that eventually evolved into SASuite.

The project died after a certain group has bought the original system, made it closed source and shutdown any derivative works; which caused myself and other maintainers to rebel and close the sources.