All discussion around whether GTA 6 will have custom maps ends up referencing the same question - 'how did this work for GTA 5?' Frankly, it worked like this: slowly, incrementally, and not at all how most people remember it. There was no custom map scene at GTA 5's launch. It developed over years.

This is the working timeline. It covers what happened, when it happened, and what each stage actually unlocked. The purpose of the history section is not to reminisce - it is meant to serve as the closest thing we can come up with to a guide for how the GTA 6 modding community is likely to progress. See the GTA 6 custom maps likelihood piece for the forward-looking version.

2014–2015: The PC port and the toolchain

GTA V released on PS3 and Xbox 360 in September of 2013. November 2014 saw releases for Xbox One and PS4. April of 2015 saw the PC release - 18 months after the original launch, on the high end of Rockstar's console-to-PC release trend. Mods for GTA V didn't really start until the PC version was out, as the consoles are sandboxed by their respective platforms.

The first mods were little ones - texture swaps, replacement vehicles, that sort of low-level modding that doesn't require a true toolchain. Proper map-modding tooling followed almost immediately, because GTA V was built on a familiar enough iteration of the RAGE engine that tools could be ported across, and because the GTA IV community had been researching and developing such things for the years in between. OpenIV - the editor that had powered GTA IV mods - was soon updated to support GTA V.

2015–2016: OpenIV becomes the centre

OpenIV quickly became GTA 5 modding's centre of gravity within months of the PC release. It allowed modders to open and edit Rockstar's archive files, swap textures, replace models, and - most importantly - begin to comprehend the YMAP and YMT files that structured map data. The earliest map-side mods were simple object placements and slight exterior alterations. Rockstar, at this point, seemingly turned a blind eye to the scene.

ScriptHookV - the support library allowing script mods to execute within GTA V - quickly became ubiquitous alongside OpenIV. OpenIV, ScriptHookV and a few tools from the community became the foundational toolchain that enabled everything that came later.

2017: The cease-and-desist and the reversal

In June 2017 Take-Two sent OpenIV a cease-and-desist. The community quickly hit back with tens of thousands of negative Steam reviews, launched petition drives, and got coverage in the mainstream gaming press. Within two weeks Take-Two backed down, issuing a statement that single-player mods would generally be tolerated.

This is as official a Rockstar stance on modding as has ever been made public. It does not cover online mods - which Rockstar has always cracked down on hard - but as far as single-player mods and the map mods that exist within single-player or on third-party multiplayer frameworks go, this stance has held. You can read more about this incident on the OpenIV history page.

2017–2019: CodeWalker, MLOs and FiveM

Three key developments occurred during this time frame. CodeWalker, a graphical level editor for RAGE engine map and asset files, became the dominant tool among map modders. MLOs - custom interior spaces that load when the player walks through a portal - became feasible, and what could be done with interiors greatly changed as a result.

As well as this, FiveM - the alternative multiplayer framework - evolved out of being a curiosity into the primary destination for serious map projects. FiveM allowed server owners to deliver custom maps to players whilst completely sidestepping Rockstar's official multiplayer. Since 2017, the map-modding community has firmly centred itself around FiveM.

2019–2022: Big conversions and the NoPixel era

Two trends advanced map modding during this era. Large-scale conversion projects on one hand - the Liberty City mod, the Vice City Remastered effort, various real-city conversions - raised the ceiling of what custom maps could be. These were community projects that took years. Most still aren't 'complete' by traditional standards.

On the other hand, the boom of GTA RP - particularly the exposure of NoPixel - created massive demand for MLOs and custom locations on RP servers. By 2022 most large RP servers came standard with dozens of custom MLOs. The MLO marketplace (where creators sold finished interiors to server owners) became a serious sub-economy.

2022–present: A mature scene and a long tail

By 2022, the scene had evolved enough that 'custom maps' referred to several different things at once. Single-player map mods - mostly small. Server-side custom places on FiveM and RAGE MP - big and active. Big conversion projects - perennial works-in-progress, occasionally finished, mostly not. MLO marketplaces - well-developed. Modding tools - mature, with CodeWalker and OpenIV as the primary editors and an extensive list of auxiliary tools.

Rockstar have kept their distance from this scene for the most part. The dynamics changed with their purchase of Cfx.re - the team who operate FiveM - in 2023: suddenly a portion of the modding community became, technically, part of the publisher. How that will impact GTA 6's scene is the most intriguing unknown.

What this history teaches us about GTA 6

Three lessons, with the necessary caveats. First, the scene doesn't really start picking up until after the PC release - which tends to land a year or so after console. Second, it all hinges on the toolchain: tools get you mods, and mods get you ambitious mods. Third, multiplayer-side mapping eventually outpaces single-player mapping, which factors into where the map-modding epicentre ends up.

All of this is based on precedent. None of it is a promise from Rockstar. We cover our thoughts on the forward-looking equivalent in the GTA 6 custom maps likelihood piece and the GTA 6 PC release piece. For the wider GTA 6 modding scene, head to gtamodding.net, where general modding coverage lives.