What RedM is

RedM is the Cfx.re platform for running your own Red Dead Redemption 2 multiplayer servers on PC, the same way FiveM does it for GTA V. Players start the RedM client on their own copy of RDR2 and join a server from the Cfx.re server list. You run that server with FXServer, the same server program FiveM uses, and you fill it with resources: folders of Lua (or JavaScript, or C#) with a manifest.

If you already run a FiveM server, most of what you know carries over. The part that changes is everything that touches the game itself.

What is the same as FiveM

That part is the Cfx.re platform, so it is shared between the two games:

• FXServer and its artifacts. You download the same server builds. What makes a server a RedM server is two lines in server.cfg, see Server setup.
• txAdmin. It ships with FXServer and has an official RedM recipe.
• The resource system. fxmanifest.lua, ensure, stream/ folders, dependencies and load order work the same.
• Server side scripting. Events, exports, state bags, convars, ACE permissions, PerformHttpRequest and database code behave the same, because none of it touches the game.
• NUI. HTML pages drawn over the game work the same way.

What is different

• The game key. A resource has to say it runs on rdr3, and an rdr3 manifest needs one extra line or it does not start at all. That is the next page, The fxmanifest.
• The natives. RDR2 has its own natives. They do not match GTA V by name or by hash, and many are called by hash.
• The game data. Ped, horse, weapon, vehicle and prop names, blips, controls and text all come from RDR2. No GTA V list applies.

RedM for a FiveM script author goes through these one by one, and Porting a FiveM resource is the checklist for moving an existing script.

Where to go next