Leaks, Datamines & Cut Content

Caveat, stated once: everything in this section is inherently unofficial: datamined strings, extracted assets, and leaker claims that Epic and Psyonix never confirmed unless the content later shipped. Especially thin claims are flagged “(unverified)”.

Season 3 prototype assets, pulled straight from the game files (maintainer datamine, July 16, 2026)

Read this first: these are prototypes. Every asset in this block was extracted firsthand by the archive’s maintainer, shrezee, from the DelMar game files: two extra boost pad colours, a full track, a checkpoint gate, and two barriers. They are work in progress prototype assets that live in the game files, not shipped content. That means they might not be intended to look exactly like this in a finished Season 3: colours, materials and effects on a prototype routinely change before release, or get cut entirely. The “Season 3” label is the maintainer’s identification of where these assets belong, not something Epic ever confirmed. Further assets from the same datamine pass are being added here as they are captured.

Two boost pad variants that never shipped. A firsthand datamine of the local Fortnite install turned up three distinct colour variants of the boost pad chevron in the DelMar files, all sharing the same silhouette: a mint/teal, an orange, and a red. Only one boost pad ever appeared in game, so at least two of these were prepared and then cut, most plausibly additional pad types intended for the cancelled themed Season 3.

A full Season 3 track, basic and with side hazards. The same pass pulled a complete track out of the DelMar files, captured in two states. The first is the track in its basic form: a dark, faceted racing surface with cyan chevron lane markers and detailed orange side rails. The second is the identical track with its side hazards active, the flanking rails lit as a glowing red hazard field that walls the racing lane.

The checkpoint gate. A Rocket Racing checkpoint prototype: a white outer ring wrapped around an inner gold band, with a small mounting bracket on one side, turning slowly in the editor viewport. It is the gate a car flies through to register progress along a track.

Two barrier prototypes. Two tube shaped barrier prototypes sit side by side in the files. The first is a translucent cylinder wrapped in an amber honeycomb mesh with two open ring shaped windows through it; the second is a translucent cylinder marked with red chevron banding in an X/hourglass pattern, reading as a hazard or no go barrier. Both are the kind of course boundary prop that walls a racing lane.

Pre launch traces & datamines (August 2022-November 2023)

The earliest known trace, published here first (maintainer datamine, firsthand). Rocket Racing’s development footprint predates every public leak by a full year: per firsthand datamining by this archive’s maintainer, shrezee, DelMar code was already present in the Fortnite v21.40 build (August 2022), roughly sixteen months before the mode shipped in the v28.00 era, months before the playlist_delmar_deathrace file’s reported November 23, 2022 creation date (below), and a year before the first public leak in August 2023. (Maintainer attested; the build level specifics (plugin/file paths, strings, screenshots) are queued for preservation, see Section 22.)

Rocket Racing leaked months before Epic acknowledged it. On August 3, 2023, dataminer NotJulesDev, with findings summarized and amplified by HYPEX, revealed an unannounced Psyonix built racing mode inside Fortnite’s files, described in press coverage as Mario Kart like: a headstart boost for revving the engine before the start, drift to turbo boost, distinct handling on ice and mud surfaces, air tricks, a playable Octane, and time trials. This first leak already referenced a “Death Race” mode^[1]. Parallel prelaunch datamines added car customization and AI bot drivers^[2], and ComicBook reported Rocket League was “heavily involved”^[3]. iFireMonkey first detected Death Race strings in the files in September 2023^[4].

Launch era finds (December 2023-January 2024)

The mode launched December 8, 2023, and leaks immediatly outpaced official communication:

• Dec 3, 2023: iFireMonkey revealed Rocket League cross ownership: car bodies already owned in Rocket League showed up as owned in Fortnite too (the four car launch roster is in Section 13)^[5]. FNBRintel posted parallel early coverage^[6].
• Dec 8, 2023 (launch day): ShiinaBR leaked the near term roadmap: speedrun leaderboards, creator made tracks, Season 1 in early 2024, expanded car customization^[7]; EarlyGame wrote it up as a leaked “expansion”^[8].
• Jan 5, 2024: a leaked 2024 car list from SamLeakss, BeastFNCreative and NotJulesDev: Centio V17, Endo, Battle Bus, Whiplash, Ferrari 458, Citroen C3 Rally2; several never released^[9]. The Endo later surfaced in a shop datamine^[10]. The same day, BeastFNCreative leaked six UEFN Rocket Racing track editor devices: Physics Rate, Race Manager, Speed Pad, Checkpoint, Player Start, Vehicle Spawner^[11].
• Jan 17, 2024: leaks revealed three unreleased cosmetic categories in development: Car Boosters, Drift Smoke, Engine Audios^[12], none of which shipped as described.

The extraction workflow behind most of these finds was the community standard FModel pak browsing pipeline^[13].

Death Race: the flagship cut mode

Death Race is Rocket Racing’s best documented piece of cut content. Traces run from the August 2023 NotJulesDev/HYPEX leak, through iFireMonkey’s September 2023 string discovery, to the playlist file (playlist_delmar_deathrace) created November 23, 2022 per a leaker claim quoted by GGRecon^[14]; the placeholder playlist icon iFireMonkey found is undated in coverage. On December 29, 2023, @BeastFNCreative detailed the design: players place spikes and other deadly obstacles to make tracks harder and knock rivals into walls: combat adjacent hazard racing rather than pure time attack^[15]. In the same thread, footage via @SpushFNBR showcased a work in progress Death Race map called “Wedge” extracted from game files^[16]. Coverage spanned Dexerto^[17], GameRant^[18], GGRecon (as “Death Mode”)^[19], exputer^[20], ComicBook, Try Hard Guides and Sportskeeda^[21]. Death Race never shipped and remained unreleased at the shutdown announcement. Hard corroboration, live verified July 11, 2026: the public Fortnite API still exposes Playlist_DelMar_DeathRace^[22]: name “Del Mar: Death Race Mode”, gameplay tag DelMar.Mode.DeathRace, supporting 1-16 players (vs. standard racing’s 12), added to the files December 4, 2023, four days before the mode’s launch.

Leak timeline

After Epic quietly ended themed updates in October 2024, leak volume collapsed alongside the mode’s relevance^[23].

Other cut and unreleased content

A “Challenge Mode” playlist exists in the files: the public Fortnite API exposes Playlist_DelMar_Challenge, named “Del Mar: Challenge Mode” (live verified July 11, 2026 via fortnite-api.com^[24]), with no press, leak account, or wiki coverage. Part of it did ship, though: the July 2026 LevelData sweep (Section 8.4) found that DelMar.Mode.Challenge is the internal mode tag on the Speed Run exclusive maps (Tilted Turns = Ch_Apollo, Pleasant Detour, Aero, Inverse Arches, etc.), which did ship, reachable in game only through the Speed Run playlist. So “Challenge Mode” is the engine’s internal name for that Speed Run only track pool; what’s unconfirmed is only whether Playlist_DelMar_Challenge was ever surfaced as its own distinct front end mode. It sits alongside the Death Race playlist (above) and the shipped Tutorial playlist in the same API namespace (see Section 8.4).

The Pixar Cars collab: leaked, delayed, and stranded by the shutdown

The most fully documented unreleased collaboration. Community anticipation predates the leak: the day v31.40 ended themed seasons, official Discord chatter already expected future tracks “maybe for collabs (like Cars)” (RR #rocket-racing-chat, Oct 12, 2024). Timeline: Oct 25-27, 2024, ShiinaBR/SamLeakss leak a Disney/Pixar Cars collab for Rocket Racing: Lightning McQueen and Mater car bodies plus maps codenamed “Thunder”, including Radiator Springs and Willy’s Butte^[25][26][27]. Nov 2, 2024: McQueen wheel files land in the game files^[28]. Dec 18, 2024, SamLeakss: the collab is “fully encrypted, or has been delayed last minute”^[29]; the delay is confirmed in coverage by Jan 10, 2025^[30]. Feb 25, 2025, SamLeakss publishes the full package: both car bodies (with BR variants), four weeks of free reward quests, and three racing tracks (Radiator Springs, Willy’s Butte, Wheel Well), each with its own new soundtrack; iFireMonkey posts the leaked track audio^[31][32][33]. Mar 16, 2025: “not coming… anytime soon, due to Internal Delays at Epic”^[34]. Mar 19, 2026: “CARS x FORTNITE IS BACK IN DEVELOPMENT” for Fortnite and Rocket League^[35], five days before the Mar 24, 2026 shutdown announcement took the Rocket Racing version off the table. Nothing had shipped as of July 2026; Epic never officially acknowledged or cancelled the collab, and after its many delays the community understanding is that it now targets 2027, for Fortnite and Rocket League, necessarily without the Rocket Racing maps it was originally built around.

The music: the three ThirtyTwoMusic songs (documented; audio preserved with this archive). Three songs bearing the ThirtyTwoMusic file prefix appeared in Fortnite’s game files tied to the Cars collab and were removed shortly after (community report on the removal timing). The audio itself survives: shrezee’s preserved copies of all three unreleased soundtracks are archived here under their file naming verbatim:

• ThirtyTwoMusic__Rocket_Racing_Pixar_Cars_Track_1_SLW.mp3 (4:11)
• ThirtyTwoMusic__Rocket_Racing_Pixar_Cars_Track_2_ET.mp3 (3:51)
• ThirtyTwoMusic__Rocket_Racing_Pixar_Cars_Track_3_MC.mp3 (3:57)

The filenames themselves confirm the claim’s core: exactly three tracks, the ThirtyTwoMusic prefix (Thirty Two Music Ltd., see Section 14), commissioned for Rocket Racing Pixar Cars. Per shrezee’s firsthand datamining, the three songs were built as new Music Selection entries for the Race Manager, joining the existing Fortnite / Canyon / Neon / None options, with ready made data assets already created and selectable (confirmed for the internal/private race manager; whether they would also have been exposed to UEFN creators is unknown), and they would have played randomly across the three Pixar Cars maps rather than one song per track (see Section 14.4 on the Music Selection system). This matches iFireMonkey’s Feb 25, 2025 “Full Audio” post^[36]. The exact removal version numbers remain unverified (the Fandom “Unreleased Collaborations”^[37] page that likely documents them is bot blocked), and no press outlet ever covered the removal, consistent with the near zero media attention RR leaks received by 2025-26.

The Track Select V2 screens: the lobby redesign leaked “Still not In-Game” (June 2024)

(documented; the redesign is corroborated by the shipping game’s files and by shrezee’s two raw widget captures, preserved with this archive)

On June 22, 2024, Epic Partner and UEFN creator ImPeQu posted two images captioned “The Rocket Racing Track Selection UI Rework has been updated (Still not In-Game)”^[38], amplified by SamLeakss on June 24^[39] and covered by Insider Gaming the same day^[40]. Those two images are AI generated fabrications, not genuine captures; they are not reproduced here. The redesign they claimed to show was real, but the authentic record comes from the shipping game’s own files (below) and from this archive maintainer’s firsthand raw captures. As recovered from those genuine sources, the redesign included:

• Track Select (playlist cards): Rocket Racing / Speed Run / Casual playlist cards (the Casual playlist a month before it shipped), a Metallica “Featured Track” card (a leak that resolved as shipped content: the Metallica collab arrived as the Thrash Mountain track in v30.10 on June 13, 2024, see Section 8), a Training: “LEARN THE ROPES” card, and a “Browse More” button.

• Map detail / mode select: a “Map Name” card (Epic Games attribution, placeholder description, CHANGE TRACK button), a PRIVACY Public/Private toggle, and a three row “Mode Select” checkbox list whose icons correspond, per the game files, to Playlist (red flag), Time Trials (green stopwatch) and Community (blue globe).

A raw earlier revision is preserved with this archive. Two firsthand captures by this archive’s maintainer, community leaker/dataminer shrezee, show the widget in a more finished but still WIP form: an apparently earlier revision than the ImPeQu tweet, with a yellow SELECT button instead of PLAY and an ESRB rating card block still reading “[PH] Teen very long text” with placeholder content/interaction descriptors. ImPeQu’s “has been updated” phrasing implies exactly such a prior revision.

• The PUBLIC/PRIVATE toggle, isolated: the WBP_PrivacyButton / WBP_TextToggle component rendered by itself over the UMG designer’s transparency checkerboard, the clearest look at the shipped since early 2024 privacy control.

  

These raw captures are a primary source: shrezee’s own firsthand extraction from the game files.

File level corroboration (live datamine of the local Fortnite install, July 13, 2026). The widget family still exists in Fortnite’s current paks under FortniteGame/Plugins/GameFeatures/DelMar/DelMarTrackSelectorUI/Content/UI/Features/TrackSelectV2/: WBP_DelMarTrackSelectScreen, WBP_TrackModeSelect, WBP_PrivacyButton and WBP_TextToggle (the toggle component), WBP_ChangeTrackButton_V2, WBP_PlayButton_V2, WBP_DetailsBackButton_V2, WBP_DelMarContentGate_RatingCardButton (the ESRB placeholder card), and the mode icons DM_Icon_Playlist / DM_Icon_TimeTrials / DM_Icon_Community. Property level JSON exports of these exact widgets were extracted on an earlier build (July 7, 2026); a reattempt on the current build was blocked by a missing .usmap mapping file (see Section 22). The asset paths and the recovered properties confirm this is genuine Epic UMG work, not a fan mockup.

What shipped and what didn’t. This is not “the private-match UI Rocket Racing never got”: match privacy had been live since early 2024 (v28.30-era coverage describes Speed Run as playable “in either public or private matches”^[41], and Epic’s support pages documented the shipped Privacy setting: private = unranked with your party of up to 12; public = ranked, party of up to 4). Much of the redesign itself also shipped: the Casual playlist arrived with Inferno Island (v30.30, July 23, 2024), and a revamped track selection UI landed in v30.40 per the Fortnite Wiki (unverified). What never shipped in this form: the three row checkbox Mode Select (implying multi select queueing across Playlist / Time Trials / Community pools), the Training playlist card, and the raw revision’s SELECT + ESRB rating card layout. The TrackSelectV2 assets remained in the shipping game’s files through July 2026.

The cancelled themed Season 3: the Roadmap Leak + the Emroca concept art

Two independent pieces of evidence document the themed Season 3 that never shipped.

1. “The Roadmap Leak” (April 18-19, 2024). An image of Epic’s internal 2024 content roadmap was posted anonymously to 4chan and spread by HYPEX, iFireMonkey and ShiinaBR^[42][43][44]. It covered all four modes March-December 2024 and proved remarkably accurate (Pirates of the Caribbean, Metallica, the Marvel season, OG Chapter 2); the Metallica entry even reached Rocket Racing directly, shipping as the Thrash Mountain track in v30.10 on June 13, 2024 (see Section 8). HYPEX later called it “the biggest Fortnite leak”^[45], and it has its own Fortnite Wiki page, “The Roadmap Leak”^[46]. For Rocket Racing it showed an “Aztec/Volcano theme” for ~June (which shipped as Inferno Island) followed by a “Skyscraper / heaven-futuristic-city theme” for roughly September-November 2024 (EarlyGame^[47]; AltChar read it as a “Sky/Heavens-themed update”^[48]). That futuristic season never shipped: v31.40 (October 2024) ended themed updates instead. The leaked roadmap image itself is preserved with this archive: a photographed screen showing March-December 2024 rows for LEGO Fortnite, Battle Royale, Festival and Rocket Racing. The RR row displays four themed season vignettes, including a lava/temple scene in the June-August slot (shipped as Inferno Island) and, in the ~October-November slot, a futuristic skyscraper city scene visibly consistent with the Emroca concept art below.

2. The Emroca Instagram post (documented; screenshot and all three carousel images preserved with this archive). Jose “Emroca” Flores, verified Senior Concept Artist at Epic Games, San Diego, with a public Rocket League credit^[49][50], posted on IG @emroca^[51] (dated June 23; surfaced to this archive July 2026) a three image carousel, set to Juan García Esquivel’s space age lounge piece “El Cable.” Caption, verbatim: “I don’t show too much of my environment work but here is some stuff I was helping develop for Rocket Racing. I like to block stuff out in Zbrush then go in and refine it all. This was inspired by the Jetson’s.” (183 likes, 5 comments at capture.)

The three images:

• Key art 1: the sky city: wide establishing shot of a Googie/Jetsons retro futuristic city: mushroom capped and sail form towers, lush garden terraces and biodomes below, pink flying vehicles overhead, an elevated white race track ribbon sweeping through the lower left past a neon pink inverted triangle gate marked “13”, a row of orange chevron flags, and an in world “FUELINA” billboard featuring a blue skinned character: a fictional fuel brand ad implying full in world track dressing.

  

• Blockout: ZBrush/level geometry: an untextured white 3D blockout of the same city (pedestal towers, canopy discs, a translucent track/tube crossing the foreground). This matches the caption’s stated workflow (“block stuff out in Zbrush then go in and refine”) and reads as level/asset development rather than illustration: strong evidence the theme moved past concept paintings into actual 3D production.

  

• Key art 2: trackside: racing level shot of a stylized magenta car boosting along the white and orange track past crowded grandstands under Googie sail canopies, orange boost chevrons, with the same “13” gate in the background, the recurring “13” suggesting numbered track/sector signage for the season’s circuits.

  

The caption confirms genuine, previously unshown Rocket Racing environment development art from an Epic artist, though it names no season.

3. The identification (community inference, plausible but unconfirmed). Matching the post’s Jetsons/Googie sky city imagery to the roadmap’s cancelled “skyscraper / heaven-futuristic-city” slot, the community reads this art as the cancelled themed Season 3. No Epic statement confirms it, and no leak account or outlet ever covered the post: by the time it appeared, the mode was already scheduled for shutdown and the leak scene had moved on.

Emroca’s portfolio: the world of Rocket Racing, in full

In July 2026 Jose Emroca Flores published a dedicated Rocket Racing project on his portfolio at artofemroca.com^[50:1], and it turns the three Instagram images above into a body of roughly thirty pieces. All of it is preserved with this archive and credited to him. The work is his and Epic’s, kept here only for documentation. His own description of the work, verbatim:

On Rocket Racing I helped explore and define the world, not just the environments, but the overall shape language and visual identity that made each space feel cohesive and believable. I worked across the full range, from raw sketches to ZBrush studies to finished paintings, pushing into mood, lighting, props, and set pieces as I explored the world from every angle. I partnered closely with the Art Director to distill it all into a clear, simple plan the team could build from, and I also did early blue sky exploration of where the vehicle design could go.

This reframes the earlier read. The Instagram sky city is one corner of a much larger designed world, and the portfolio is the visual foundation of Rocket Racing itself, not only the cancelled Season 3. Nothing here is labeled by season, and much of it matches the look the mode actually shipped with.

Four themed districts. The clearest new revelation is that the world was structured as four distinct themed districts, each with its own written design language, captured on Emroca’s mood and direction boards.

The finished environments. The districts realized as finished paintings: the sail form Resort sky city, a canyon circuit, the harbor, and The Under.

The Cruzero. A named signature set piece: a flying resort vessel loaded with spectator bleachers, worked out down to its restaurant, deck, lounge entrance and a smaller variant.

The world building systems. These sheets are the most revealing for how Rocket Racing was actually meant to be built: a modular “plate” construction, a reusable shape “DNA,” and a named track and set vocabulary. One entry, “Kickflip Walls,” names the very surfaces the mode’s kickflip technique plays off (see Section 5).

Blue sky vehicle design. Emroca’s exploration of where the cars could go, including several named racer concepts that never shipped.

3D blockouts. The ZBrush stage his caption described, the point where the look moved from painting into buildable geometry.

What the portfolio establishes: Rocket Racing was designed as a four district world (Resort, Lush, Casino, Under), assembled from modular plates on a shared shape language, with a defined track vocabulary and a set of named vehicles and set pieces that mostly never shipped. Source and full credit: Jose Emroca Flores, artofemroca.com^[50:2].

Shutdown era file discoveries (2026)

On March 19, 2026, SamLeakss found files for all three NASCAR Next Gen cars (Ford Mustang, Toyota Camry, Chevrolet Camaro) added as Rocket Racing’s newest content^[52][53], five days before Epic’s March 24 shutdown announcement (see Section 17). The NASCAR cars still shipped to the item shop^[54], and in May 2026, with the mode already scheduled for deletion, dataminers Fortnite Soul and Commander1117 surfaced 10 unreleased Chevy ZL1 team paint schemes (Hendrick Motorsports, Trackhouse, RCR, Haas Factory Team, Hyak, Team Amerivet, JR Motorsports, Joey Gase Motorsports; Rick Ware, Kaulig and Spire absent)^[55].

Dataminer and leaker directory

More cut, disabled, and scrapped content (community Discord archive)

Beyond the leaks above, the Rocket Racing (RR) and Rocket Racing Dynasty (RRD) community Discords preserve a set of smaller cut content sightings: features that were datamined or glimpsed in the files, or promised and then quietly dropped. Compiled from those server exports:

• DelMarDiorama: a disabled character rendering system. A dedicated internal subsystem for drawing the player’s character, toggled by console variables but force disabled in the shipping build. A player pinged the devs the day after launch: “any word on why DelMarDiorama (the character drawing system) isn’t being enabled at this time?” (RR #rocket-racing-chat, Dec 9, 2023). It never shipped enabled.
• The launch voting menu was removed. “what happened to the voting menu? was that cut content or is the RR lobby just broken for now?” (RR #rocket-racing-chat, Dec 9, 2023).
• A “Sky theme” was planned and scrapped, an independent community corroboration of the cancelled sky city Season 3 documented above: “Sky theme was planned but clearly scrapped” (RRD, Oct 12, 2024).
• An abandoned social / hangout mode. Described as a VRChat style space for friends to gather: “it was supposed to be some kind of vr chat lookin game mode… jumping in solo and seeing it abandoned was surreal” (RRD, Oct 12, 2024).
• The “Incredicar” (Incredibles car) was scrapped, or indefinitely delayed to sync with a Rocket League Incredibles tie in: “incredicar got scrapped too” (RRD, Oct 12, 2024).
• Scrapped season assets were allegedly reused in Rocket League, with “Azura” said to be the next intended starter pack car after the Fuse and Lockjaw (RR #rocket-racing-chat, April 2026) (unverified). Per community messages, Azura did reach players via Rocket League: it shipped there as a Rocket Pass car and was being driven in Rocket Racing by April 2025 (“i use the rocket pass car azura”, RRD, April 16, 2025), though never as a Rocket Racing starter pack car; the starter pack intent remains unverified.
• Armored windows were “in the works,” possibly scrapped (RR #rocket-racing-chat, July 2, 2024) (unverified).
• Early DelMar code shipped inside Fortnite build 27.11, alongside early Juno and Sparks code: dataminers found working early Rocket Racing code there (Fortnite Modding Hub Discord). This independently confirms prelaunch DelMar code in the paks (see also the maintainer’s earlier v21.40 trace above).
• An unfinished Star Wars track, “Light Drive,” shipped into ranked rotation in the mode’s final days rather than being cut. Epic staffer Devin’s final #rr-game-status posts name it while flagging a queue bug: “We’re investigating a bug that leads to players loading into Light Drive when queueing for Olympus” (RR #rr-game-status, March 21, 2026). The community registered the release on shutdown announcement day: “New Track: LIGHT DRIVE!” and “the unfinished Star Wars track got put in ranked rotation” (both RR #rocket-racing-chat, March 24, 2026).

All community Discord sourced; quotes are verbatim from the server exports and reflect player/creator reports, not official confirmation.