ZeroSecure CTF 2.0 · 16 OCT 2026

Credits

The art, sound, type and code behind zerosecurectf.online, with thanks to everyone who made them.

Design and build

SN Chakri

The event

ZeroSecure CTF 2.0, by the CICADA3301 club, MVSR Engineering College, Hyderabad

The film

  1. The throne hall

    Found art; maker not identified

  2. The trailer: the kingdom

    Enchanted CastleSamson CastelinoArtStation

  3. The trailer: the palace gates

    Castelul Corvinilor – vedere principala (Corvin Castle, Hunedoara)Bejan NeculaiWikimedia CommonsCC BY-SA 3.0 ROChanged: cropped, graded and cut into layers with a depth map

  4. The trailer: the passage

    Gothic cloister of Saint-Jean-des-Vignes Abbey 104 (Soissons)ChatsamWikimedia CommonsCC BY-SA 4.0Changed: cropped, graded and cut into layers with a depth map

  5. The trailer: the throne room

    Dark Fantasy Throne RoomJordan ThomasArtStation

  6. The banners' cloth

    Velour Velvetcolormass (photography), Rico Cilliers (processing)Poly HavenCC0

  7. Posters 01 to 07

    Found art; makers not identified

  8. Poster 08

    Victor von DoomAlex BoneoArtStation

  9. The world: the gothic city

    Gothic City ConceptStefano ManenteArtStation

  10. The world: Doom's citadel

    SABOTAGE – CITADEL PART01Bhurin SrikhirinArtStation

  11. The citadel's walls

    The Gothic Arch and The Drawbridge, from Imaginary Prisons (1761)Giovanni Battista PiranesiThe Art Institute of ChicagoPublic domain

  12. The descent and the seven chambers

    Imaginary Prisons: the title page and plates 3, 4, 8, 9, 10, 13 and 15Giovanni Battista PiranesiThe Art Institute of ChicagoPublic domain

The sections

  1. The war room

    Signal Lost – LightingElijah (Ilya) AntonovArtStation

  2. The hall of fame

    Ancestral Gallery, Residenz, MunichWilfredorWikimedia CommonsCC0 1.0

  3. The Emperor's Court (the chief guests)

    The Forbidden SanctumMikael JavaidArtStationChanged: given depth, lit, walked

  4. The court's veil

    Throne Room (Royal Palace of Madrid)JoseolgonWikimedia CommonsCC BY 4.0Changed: a velvet drape cropped and upscaled

  5. The hall's moments

    ZeroSecure CTF 1.0 (April 2026) and 2.0 (October 2026)The club's own photographs of both editions; one from its Instagram post "CTF Panel Talk" (20 April 2026)The club (2026-10-20)Changed: resized and saved as WebP; one cropped above its camera app's stamp

  6. The war table's map

    Nova totius terrarum orbis geographica ac hydrographica tabula (Amsterdam, c. 1635)Willem Janszoon Blaeu; engraved by Josua van den EndeThe National Library of Israel, through Wikimedia CommonsPublic domain

  7. The war table's wood

    Wood Table WornDimitrios Savva (photography), Rico Cilliers (processing)Poly HavenCC0

  8. The team's portraits

    The members of the team, their own photographsThe club (2026-10-20)Changed: resized and saved as WebP; the five smallest upscaled with Real-ESRGAN and blended with a plain resize

  9. The sponsors' marks

    Knight Squad; Knight SecuredEach mark is its house's own, shown for its sponsorship of ZeroSecure CTF 2.0knightsquad.org; the club's copy of Knight Secured'sChanged: trimmed of empty margin and sized, otherwise unaltered

  10. The college's hideout

    Tower of London, Raleigh's writing deskMartinvlWikimedia CommonsCC BY-SA 3.0Changed: cropped, graded and given a depth map

  11. The closing's lock

    Lock, European, 15th–16th century (The Cloisters Collection, 1955; 55.61.5)Maker unknownThe Metropolitan Museum of ArtPublic domain (Open Access)

  12. Doom's mask at the closing

    Doctor Doom (2020)Atharva JumdeArtStation

  13. The venue map's data

    MVSR Engineering College and its streetsOpenStreetMap contributorsOpenStreetMapODbL 1.0

Sound

From Pixabay, under the Pixabay Content License (https://pixabay.com/service/license-summary/).

  1. The code's flow

    Data Soundz 1IMGMIDIPixabay

  2. Act 1: the throne room to the trailer

    Dark Cinematic Choir Theme for Villain EntranceDesiFreeMusicPixabay

  3. Act 2: the decree to the chambers

    Epic Dark Cinematic Choir Music for Trailers and Dramatic ScenesDesiFreeMusicPixabay

  4. Act 3: the page

    Dark Cinematic Epic Orchestral Background 01vjgalaxyPixabay

  5. The glitch

    Glitch Sound Effect HDVirtual_VibesPixabay

  6. The decoding

    Data Reveal sfxJCI21Pixabay

  7. The pull into Doom's eyes

    Cinematic Intro Whoosh with Deep Bass DropChrysalynPixabay

  8. The tears

    tear paperfreesound_communityPixabay

  9. The impacts

    Cinematic Impact Boom 05UniversfieldPixabay

  10. The riser

    Sharp RiserCreatorsHomePixabay

  11. The dips between sections

    Sci-Fi Cinematic Impact – Heavy Sub Bass Followed by Digital InterfaceChrysalynPixabay

  12. The war room's screen

    old tv buttonfreesound_communityPixabay

  13. A team card turning

    Taking playing card – 2OxidVideosPixabay

  14. A ward of the lock

    Key Twist in lockfreesound_communityPixabay

Type

Each under the SIL Open Font License 1.1 (https://openfontlicense.org/).

  1. Titles and inscriptions

    CinzelNatanael GamaGoogle Fonts, through Fontsource

  2. Labels, numbers and the machine's voice

    JetBrains MonoJetBrainsGoogle Fonts, through Fontsource

  3. Body text

    MarcellusAstigmaticGoogle Fonts, through Fontsource

  4. The signature

    Mrs Saint DelafieldSudtiposGoogle Fonts, through Fontsource

  5. The team cards' suits

    Spectral (the suit glyphs only)Production TypeGoogle Fonts

Code and tools

  1. The site

    AstroThe Astro Technology Company and contributorsMIT

  2. The 3D, in WebGPU and WebGL

    three.jsthree.js authorsMIT

  3. The motion

    GSAPGreenSockGSAP Standard License

  4. The scroll

    Lenisdarkroom.engineeringMIT

  5. The team's editor

    Sveltia CMSSveltiaMIT

  6. The depth maps

    Depth Anything V2 SmallLihe Yang and colleaguesHugging FaceApache-2.0

  7. Upscaling

    Real-ESRGANXintao Wang and colleaguesBSD-3-Clause

  8. Image processing

    sharpLovell Fuller and contributorsApache-2.0

  9. Testing

    PlaywrightMicrosoftApache-2.0

  10. Hosting

    Cloudflare PagesCloudflare