--- title: "Former GTA 5 Dev Reveals Why GTA 6 Took So Long" canonical_url: "https://www.gtaboom.com/former-gta-5-dev-reveals-why-gta-6-took-so-long-c160" markdown_url: "https://www.gtaboom.com/former-gta-5-dev-reveals-why-gta-6-took-so-long-c160.md" site_name: "GTA BOOM" site_url: "https://www.gtaboom.com" published_at: "2026-04-04T00:44:19Z" updated_at: "2026-04-04T00:44:19Z" section: "news" language: "en-US" primary_category_slug: "gta-news-053f" category_slugs: - "gta-news-053f" - "grand-theft-auto-6-588b" - "gta-6-news-7d1f" tags: - "GTA 6" - "Rockstar Games" authors: - name: "Ray Ampoloquio" url: "https://www.gtaboom.com/authors/ray-ampoloquio" hero: url: "https://media.gtaboom.com/variants/1920/media/images/5c/82/former-gta-5-dev-reveals-why-gta-6-took-so-long-3.jpg" alt: "A former Rockstar audio designer who worked on GTA V and RDR2 says the studio has probably rebuilt its RAGE engine entirely for GTA 6." width: 1920 height: 1080 caption: "A former Rockstar audio designer who worked on GTA V and RDR2 says the studio has probably rebuilt its RAGE engine entirely for GTA 6." word_count: 881 reading_time_minutes: 5 --- > [!INFO] TL;DR Summary A former Rockstar developer says the long wait for _GTA 6_ likely comes down to a ground-up rebuild of the RAGE engine, with Rockstar spending years rewriting the core tech behind world streaming, physics, lighting, animation, and sound to match modern hardware. Why has [_Grand Theft Auto 6_](/grand-theft-auto-6-588b "Grand Theft Auto VI") taken the longest of any [Rockstar Games](/rockstar-games-9c2b "Rockstar Games") title to develop and release? If you ask a former Rockstar developer, it's probably because the studio "rebuilt the entirety of the RAGE engine." Rob Carr, a former audio designer who worked on [_Grand Theft Auto V_](/grand-theft-auto-v-f2c5 "Grand Theft Auto V"), _L.A. Noire_, _Red Dead Redemption_, and _Red Dead Redemption 2_ at Rockstar, told KiwiTalkz this in a [recent interview](/former-rockstar-dev-reveals-development-philosophy-behind-the-success-of-gta-games-e995 "Rockstar Dev Reveals Reason Behind Studio Success"): > I know nothing about it, other than the fact that they probably will have, given the time frame of how long it's taken them to get to this stage, they've probably rebuilt the entirety of the Rage Engine. That's the only thing I can say with real genuine confidence. He added: "I'll be amazed if they didn't because the architecture of technology has advanced significantly since _GTA 5_, which again, easy to forget, that was three generations ago. That was the last one to be released on 360 and PS3." ![Rebuilding the RAGE engine for GTA 6 would explain the seven-year development and the $3 billion budget.](https://media.gtaboom.com/media/images/fb/11/former-gta-5-dev-reveals-why-gta-6-took-so-long-2.jpg) A game engine is the foundational technology that everything else sits on top of. It is the software that handles how the world is rendered on screen, how physics work, how sound plays, how characters move, how lighting and shadows are calculated, how the game loads its world as you drive through it, and thousands of other technical processes that happen every frame. When you drive around [Los Santos](/los-santos-efb7 "Los Santos") and see the sun reflect off the ocean or watch a car crumple in a collision, the engine is what makes all of that possible. Rockstar's engine is called [RAGE](/rage-0d9e "RAGE"), which stands for Rockstar Advanced Game Engine, and debuted in 2006 in _Rockstar Games Presents Table Tennis_. Since then, RAGE has powered every major Rockstar release: [_Grand Theft Auto IV_](/grand-theft-auto-4-f19e "Grand Theft Auto 4"), _Red Dead Redemption_, _Max Payne 3_, _L.A. Noire_, _GTA V_, and _RDR2_, and each game used a progressively upgraded version of the engine. Rockstar has never officially named each version, but it's interesting that Carr says Rockstar didn't just upgrade the engine used for _GTA 6_. Instead, it actually rebuilt it from the ground up. This means that Rockstar took its sweet time rewriting the core systems that everything else depends on, to take advantage of hardware and software capabilities that did not exist when the previous version was written. ![The gap between PS3-era architecture and PS5 hardware probably made the RAGE engine rebuild a practical necessity.](https://media.gtaboom.com/media/images/c5/8c/former-gta-5-dev-reveals-why-gta-6-took-so-long-3-1.jpg) Former [Rockstar North](/rockstar-north-caeb "Rockstar North") technical director [Obbe Vermeij](/obbe-vermeij-495d "Obbe Vermeij") explained the rationale behind using an in-house engine, [telling us](/former-gta-technical-director-has-high-praise-for-gta-6-engine-79be "Former Rockstar Dev Defends RAGE Engine for GTA 6") that it gives the studio a level of control over its open-world systems that no off-the-shelf engine can match. A rebuilt RAGE engine, purpose-built for _GTA 6's_ scale and the current console generation's capabilities, would represent the most significant investment in proprietary game technology that any studio has ever made. No wonder then _GTA 6_ has taken this long to make and reportedly has cost Rockstar and [Take-Two Interactive](/take-two-interactive-eeeb "Take-Two Interactive") [$3 billion so far](/gta-6-budget-may-be-higher-than-any-movie-ever-made-9a75 "Rockstar Sets Massive Budget for GTA 6"). [_GTA 6_](/grand-theft-auto-vi-a428 "Grand Theft Auto VI") launches on [November 19, 2026](/take-two-just-confirmed-gta-6-is-actually-releasing-this-november-39ac "GTA 6 Release Date"). When it does, the engine running under the hood will be the thing that determines whether the game feels like a generational leap or an incremental improvement. If Carr is right, and Rockstar did rebuild RAGE from the ground up, then everything we have seen in the [first](/grand-theft-auto-6-first-trailer-b9b8 "Grand Theft Auto 6 First Trailer") and [second trailers](/grand-theft-auto-6-second-trailer-c672 "Grand Theft Auto 6 Second Trailer") is not the ceiling of what the engine can do, it's just the floor, and this is the answer to why it took so long. It always was. ## Quick answers - **Q:** What is RAGE in GTA 6? **A:** RAGE is Rockstar’s in house game engine. It is the core technology that handles rendering, physics, sound, character movement, lighting, shadows, and how the world loads as you move through it. - **Q:** Why do people think Rockstar rebuilt the engine for GTA 6? **A:** Rob Carr, a former Rockstar audio designer, said he would be amazed if Rockstar had not rebuilt the entirety of RAGE given how long GTA 6 has taken and how much technology has advanced since GTA 5. - **Q:** How would a rebuilt RAGE engine differ from a normal upgrade? **A:** A normal upgrade would improve the existing tech step by step. A rebuild would mean rewriting the core systems from the ground up so the engine can fully target current hardware and the scale Rockstar wants for GTA 6. - **Q:** Is the RAGE rebuild confirmed by Rockstar? **A:** Not confirmed yet. Rockstar has not officially said GTA 6 uses a fully rebuilt version of RAGE. - **Q:** Does a rebuilt engine guarantee GTA 6 will be a huge leap over GTA 5? **A:** No. The engine can raise the ceiling for world detail, simulation, and performance, but the final result still depends on how Rockstar uses that tech in the finished game. > [!INFO] What to watch for 1. Watch for Rockstar technical details on GTA 6 and RAGE. 2. World density, lighting, animation, and streaming are the clearest places to look for signs of new core tech. 3. Final gameplay will show whether the new tech delivers a generational leap or a smaller step forward.