GTA 6 Modding Tools — What to Expect (July 2026)

GTA 6 will need a completely new modding toolchain. Everything from GTA 5 — Script Hook V, OpenIV, CodeWalker — must be rebuilt or adapted for RAGE engine's latest version. Here's what every modder should know about the tools that will power GTA 6 modding.

🔧 Script Hook VI Expected: Weeks 1-8

The foundation of GTA modding. Script Hook VI will allow custom ASI scripts to run in GTA 6 — trainers, gameplay mods, everything depends on it. Alexander Blade, who built Script Hook V, is expected to develop this. Cannot begin work until the PC binary is available for reverse engineering. Historically takes 1-8 weeks after PC launch.

What it enables: All script mods, trainers, gameplay overhauls, custom missions, LSPDFR successor.

📁 OpenIV Successor / RPF Archive Tool Expected: Days after PC launch

GTA 6 uses encrypted RPF archives (same format family as GTA 5 and RDR2). An archive tool — either OpenIV extended for GTA 6 or a new equivalent — is needed to browse, extract, and replace game files. The OpenIV team has historically delivered within days of PC launch. RDR2's encryption took longer, so GTA 6 may too.

What it enables: Texture replacements, model swaps, vehicle mod installations, weapon replacements.

🗺️ CodeWalker / Map Editor Expected: 3-12 months

GTA 6's map in Leonida is reportedly Rockstar's largest ever. A graphical map editor like CodeWalker is required for adding custom interiors (MLO), custom islands, and map expansions. Full-featured map editing requires complete reverse engineering of the new file formats — this takes months, not weeks.

What it enables: MLO interior additions, custom map zones, race tracks, world expansions.

🎮 FiveM Equivalent / Cfx.re Platform Expected: 12-24 months

Rockstar acquired Cfx.re (FiveM, RedM) in 2023. The Creator Platform Team is building something. Three scenarios: (1) Official UGC platform integrated into GTA 6 Online, (2) FiveM-style standalone multiplayer modding framework with Rockstar oversight, (3) Restricted ecosystem that limits third-party servers. Whatever ships will define GTA 6 roleplay and multiplayer modding.

What it enables: Custom multiplayer servers, roleplay communities, custom game modes.

⚡ Script Hook V .NET / LUA Plugin Successors Expected: 2-8 weeks

Script Hook V .NET and the LUA Plugin make script modding accessible to developers who don't write C++. .NET (C#) and LUA successors for GTA 6 will follow shortly after Script Hook VI. The existing maintainers (crosire for .NET, headscript for LUA) are expected to port their work.

What it enables: Rapid script development, community tools, UI mods.

Tool Timeline After PC Launch

Day 1-3: Archive tools (OpenIV successor), basic file replacement, texture mods
Day 3-7: First trainers, memory editors, simple vehicle spawners
Week 1-2: First vehicle add-on mods, basic weapon replacements
Week 2-8: Script Hook VI, script mods, gameplay overhauls begin
Month 1-3: Graphics mods (NaturalVision successor), ReShade presets
Month 3-12: Map editors, MLO tools, first custom interiors
Month 12-24: Total conversions, multiplayer frameworks mature

What Modders Should Do Now

Learn the GTA 5 toolchain: If you know OpenIV, CodeWalker, and Script Hook V, you'll adapt faster to GTA 6 tools. The concepts transfer.
Study RDR2 modding: RDR2's RAGE engine is closer to GTA 6's than GTA 5's. Learning RDR2 modding tools gives you a head start.
Join the Cfx.re community: If Rockstar builds on FiveM's foundation, being in that ecosystem early matters.
Follow discovermods: We'll cover every tool release as it happens, with step-by-step guides.