3D Fighter - licence
====================

3D Fighter by Clint Christopher Canada (https://github.com/clintcan/3d-fighter, commit b668d876f4037bf0ecc0bd11d0f74ef6b9d05c8a). Code: MIT. Original assets (stages, generated animations, portraits, key art, logo, synthesized sounds): Creative Commons Attribution 4.0. Third-party assets: CC0, except the model of the fighter Aelia ("Aelia Character Preview" by Abinady10, Creative Commons Attribution, credited in the game's credits screen and on this page). The texts below are the originals from the repository, complete: LICENSE, LICENSE-ASSETS.md and assets/CREDITS.md.

Changes made for this site (all in the published build script and patch): the online mode (Online menu entry, lobby server address and server-list address) was removed, and the game is exported with the Compatibility renderer and without threads. No asset was changed.

================ LICENSE (MIT, code) ================

MIT License

Copyright (c) 2026 Clint Christopher Canada

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

================ LICENSE-ASSETS.md ================

# Original assets license

Copyright © 2026 Clint Christopher Canada

The original, non-code assets made for 3D Fighter are licensed under the
**Creative Commons Attribution 4.0 International License (CC BY 4.0)**:
https://creativecommons.org/licenses/by/4.0/

You may share and adapt them for any purpose, including commercially, as long as you
give appropriate credit, link to the license, and indicate if changes were made.

**Suggested credit:** "3D Fighter assets by Clint Christopher Canada, CC BY 4.0"

## What this covers

Assets created for this project (they are marked **CC BY 4.0** in [assets/CREDITS.md](assets/CREDITS.md)):

- **Stages:** the generated Boxing Ring, Dojo, Rooftop and Temple scenes (`scenes/stages/`), the crowds, and the rooftop night-sky shader.
- **Animations:** the generated fight, special-move and victory animations (`assets/animations/fight_anims.res`).
- **Art:** the character portraits, the key art and boot splash, and the stage-select thumbnails (`assets/ui/`).
- **Sounds:** the synthesized swing, energy-blast and super-flash sounds (`assets/audio/sfx/swing_*.wav`, `energy.wav`, `super.wav`).

## What it doesn't cover

- **Code** (scripts, tools, tests) is under the MIT License; see [LICENSE](LICENSE).
- **Third-party assets** keep their own licenses (CC0, plus the Apache 2.0 font in `tools/fonts/` that only the logo tool uses), listed in [assets/CREDITS.md](assets/CREDITS.md). Some original assets are built from those CC0 sources: the animations from Quaternius clips, the portraits and key art from Quaternius models, the stages with Poly Haven textures. The CC0 sources themselves remain CC0.

================ assets/CREDITS.md ================

# Asset Credits

Every third-party asset must be listed here. CC-BY assets must also appear on the in-game credits screen.

Third-party assets are CC0, except the "Aelia" character model (CC-BY, credited in game) and the Permanent Marker font that `tools/build_logo.py` letters the logo with (Apache 2.0; it stays in `tools/fonts/` and isn't part of the game). Assets made for this project are © Clint Christopher Canada under
[CC BY 4.0](../LICENSE-ASSETS.md) (marked below); the code is MIT ([LICENSE](../LICENSE)).

| Asset | Path | Author | Source URL | License |
|-------|------|--------|------------|---------|
| Universal Base Characters (Standard/free): Superhero Male & Female bodies, textures | `assets/characters/base/` | Quaternius | https://quaternius.itch.io/universal-base-characters | CC0 1.0 |
| Universal Base Characters hairstyles & eyebrows (rigged to head bone) | `assets/characters/hair/` | Quaternius | https://quaternius.itch.io/universal-base-characters | CC0 1.0 |
| "Aelia Character Preview" (Aelia: mesh, skin/chainmail/eye textures; posed into a T-pose, weights moved onto the Quaternius skeleton, decimated from 107k to 40k triangles, armour materials retuned by `tools/aelia_blender.py` and `tools/build_aelia.gd`) | `assets/characters/aelia/` | Abinady10 | https://blendswap.com/blend/30219 | CC-BY (the source page states no version; credited in game) |
| Universal Animation Library (Standard/free), `UAL1_Standard.glb` | `assets/animations/` | Quaternius | https://quaternius.itch.io/universal-animation-library | CC0 1.0 |
| Universal Animation Library 2 (Standard/free), `UAL2_Standard.glb` | `assets/animations/` | Quaternius | https://quaternius.itch.io/universal-animation-library-2 | CC0 1.0 |
| Basement Boxing Ring HDRI (1k), used for ambient/reflection lighting only | `assets/stages/ring/basement_boxing_ring_1k.hdr` | Sergej Majboroda / Poly Haven | https://polyhaven.com/a/basement_boxing_ring | CC0 1.0 |
| Terlenka fabric texture (ring canvas) | `assets/stages/ring/textures/terlenka_*` | Poly Haven | https://polyhaven.com/a/terlenka | CC0 1.0 |
| Fabric Leather 02 texture (apron, corner pads, boots; Mira's sneakers at 2K with a greyscale weave map) | `assets/stages/ring/textures/fabric_leather_02_*`, `assets/characters/outfits/textures/detail/fabric_leather_02_*` | Poly Haven | https://polyhaven.com/a/fabric_leather_02 | CC0 1.0 |
| Concrete Floor Worn 001 texture (arena floor) | `assets/stages/ring/textures/concrete_floor_worn_001_*` | Poly Haven | https://polyhaven.com/a/concrete_floor_worn_001 | CC0 1.0 |
| Tatami Mat texture (dojo fighting area) | `assets/stages/dojo/textures/tatami_mat_*` | Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/tatami_mat | CC0 1.0 |
| Hinoki Planks texture (dojo floor, bokken, shrine) | `assets/stages/dojo/textures/hinoki_planks_*` | Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/hinoki_planks | CC0 1.0 |
| Japanese Cedar Planks texture (dojo wainscot, ceiling) | `assets/stages/dojo/textures/japanese_cedar_planks_*` | Charlotte Baglioni, Rico Cilliers / Poly Haven | https://polyhaven.com/a/japanese_cedar_planks | CC0 1.0 |
| Dark Wood texture (dojo timber frame) | `assets/stages/dojo/textures/dark_wood_*` | Dario Barresi, Dimitrios Savva, Rico Cilliers / Poly Haven | https://polyhaven.com/a/dark_wood | CC0 1.0 |
| Shanghai Bund HDRI (tonemapped JPG; skyline band cropped to `shanghai_bund_skyline.jpg`) | `assets/stages/rooftop/shanghai_bund_skyline.jpg` | Greg Zaal / Poly Haven | https://polyhaven.com/a/shanghai_bund | CC0 1.0 |
| Belfast Sunset (Pure Sky) HDRI (2k; temple sky) | `assets/stages/temple/belfast_sunset_puresky_2k.hdr` | Greg Zaal, Dimitrios Savva, Jarod Guest / Poly Haven | https://polyhaven.com/a/belfast_sunset_puresky | CC0 1.0 |
| Monastery Stone Floor texture (temple platform, paths) | `assets/stages/temple/textures/monastery_stone_floor_*` | Amal Kumar / Poly Haven | https://polyhaven.com/a/monastery_stone_floor | CC0 1.0 |
| Japanese Stone Wall texture (temple platform, walls, lanterns) | `assets/stages/temple/textures/japanese_stone_wall_*` | Rico Cilliers, Charlotte Baglioni, Dario Barresi / Poly Haven | https://polyhaven.com/a/japanese_stone_wall | CC0 1.0 |
| Gravel Floor 03 texture (temple raked gravel, Express track ballast) | `assets/stages/temple/textures/gravel_floor_03_*` | Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/gravel_floor_03 | CC0 1.0 |
| Grey Roof Tiles texture (pagoda, hall, wall caps) | `assets/stages/temple/textures/grey_roof_tiles_*` | Rob Tuytel / Poly Haven | https://polyhaven.com/a/grey_roof_tiles | CC0 1.0 |
| Kloofendal 48d Partly Cloudy (Pure Sky) HDRI (2k; beach sky) | `assets/stages/beach/kloofendal_48d_partly_cloudy_puresky_2k.hdr` | Greg Zaal, Jarod Guest / Poly Haven | https://polyhaven.com/a/kloofendal_48d_partly_cloudy_puresky | CC0 1.0 |
| Coast Sand 01 texture (beach sand) | `assets/stages/beach/textures/coast_sand_01_*` | Rob Tuytel / Poly Haven | https://polyhaven.com/a/coast_sand_01 | CC0 1.0 |
| Palm Tree Bark texture (palm trunks) | `assets/stages/beach/textures/palm_tree_bark_*` | Dimitrios Savva, Rico Cilliers / Poly Haven | https://polyhaven.com/a/palm_tree_bark | CC0 1.0 |
| Bamboo Wall texture (tiki bar, lifeguard tower) | `assets/stages/beach/textures/bamboo_wall_*` | Amal Kumar / Poly Haven | https://polyhaven.com/a/bamboo_wall | CC0 1.0 |
| Thatch Roof Angled texture (tiki bar roof, umbrellas) | `assets/stages/beach/textures/thatch_roof_angled_*` | Rob Tuytel, Dimitrios Savva / Poly Haven | https://polyhaven.com/a/thatch_roof_angled | CC0 1.0 |
| White Plaster 02 texture (dojo upper walls) | `assets/stages/dojo/textures/white_plaster_02_*` | Rob Tuytel / Poly Haven | https://polyhaven.com/a/white_plaster_02 | CC0 1.0 |
| Ring stage geometry, crowd | `scenes/stages/ring.tscn`, `scripts/stages/crowd.gd` | Generated by `tools/build_ring_stage.gd` | — | CC BY 4.0 (project original) |
| Dojo, Rooftop, Temple and Beach stage geometry, props, kneeling students | `scenes/stages/dojo.tscn`, `rooftop.tscn`, `temple.tscn`, `beach.tscn` | Generated by `tools/build_dojo_stage.gd`, `build_rooftop_stage.gd`, `build_temple_stage.gd`, `build_beach_stage.gd` | — | CC BY 4.0 (project original) |
| Rooftop night-sky shader | `assets/stages/rooftop/night_skyline.gdshader` | Written for this project (samples the CC0 Shanghai Bund band) | — | CC BY 4.0 (project original) |
| Beach ocean shader | `assets/stages/beach/ocean.gdshader` | Written for this project | — | CC BY 4.0 (project original) |
| Jin body texture (darker skin, teal shorts) | `assets/characters/jin/T_Jin_Body.png` | Recoloured from the Quaternius `T_Superhero_Male_Dark.png` for this project | — | CC BY 4.0 (project original, from CC0 sources) |
| Mira body texture (warm medium-brown skin) | `assets/characters/mira/T_Mira_Body.png` | Recoloured from the Quaternius `T_Superhero_Female_Dark_BaseColor.png` for this project | — | CC BY 4.0 (project original, from CC0 sources) |
| Mira's bob hairstyle | `assets/characters/hair/Hair_Bob*` | Cut from the Quaternius `Hair_Long` by `tools/build_hair.gd` | — | CC BY 4.0 (project original, from CC0 sources) |
| Skin pore detail normal map (procedural) | `assets/characters/detail/skin_pores_nor.png` | Generated for this project | — | CC BY 4.0 (project original) |
| Title logo (brush lettering, dry-brush effects) | `assets/ui/logo.png` | Made by `tools/build_logo.py` from the Permanent Marker font | — | CC BY 4.0 (project original) |
| Permanent Marker font (logo lettering only; not shipped with the game) | `tools/fonts/PermanentMarker-Regular.ttf` | Font Diner / Google Fonts | https://fonts.google.com/specimen/Permanent+Marker | Apache 2.0 (`tools/fonts/PermanentMarker-LICENSE.txt`) |
| Stage-select thumbnails | `assets/ui/stages/` | Rendered by `tools/render_stage_thumbs.gd` | — | CC BY 4.0 (project original) |
| Cotton Jersey texture (gi, dobok, tank top, hand wraps, belts, Mira's top; normal + roughness, 1K and 2K; the 2K diffuse as a greyscale weave map) | `assets/characters/outfits/textures/cotton_jersey_*`, `.../textures/detail/cotton_jersey_*` | colormass, Rico Cilliers / Poly Haven | https://polyhaven.com/a/cotton_jersey | CC0 1.0 |
| Bi Stretch texture (singlet, sports top, shorts, Mira's track pants and trim; normal + roughness, 1K and 2K; the 2K diffuse as a greyscale weave map) | `assets/characters/outfits/textures/bi_stretch_*`, `.../textures/detail/bi_stretch_*` | colormass, Rico Cilliers / Poly Haven | https://polyhaven.com/a/bi_stretch | CC0 1.0 |
| Denim Fabric 06 texture (Brutus's pants; normal + roughness, 1K and 2K; the 2K diffuse as a greyscale weave map) | `assets/characters/outfits/textures/denim_fabric_06_*`, `.../textures/detail/denim_fabric_06_*` | Greg Zaal, Rico Cilliers / Poly Haven | https://polyhaven.com/a/denim_fabric_06 | CC0 1.0 |
| Fighter outfits (generated clothing meshes and trimmed bodies) | `assets/characters/outfits/*.res` | Generated by `tools/build_outfits.gd` from the Quaternius bodies | — | CC BY 4.0 (project original, from CC0 sources) |
| Character portraits | `assets/ui/portraits/` | Rendered from the Quaternius models by `tools/render_portraits.gd` | — | CC BY 4.0 (project original, from CC0 sources) |
| Impact Sounds (punches, plate blocks, soft falls, bell) | `assets/audio/sfx/impact*.ogg` | Kenney | https://kenney.nl/assets/impact-sounds | CC0 1.0 |
| Interface Sounds (select, confirmation, back) | `assets/audio/sfx/select_*, confirmation_*, back_*` | Kenney | https://kenney.nl/assets/interface-sounds | CC0 1.0 |
| Voiceover Pack: Fighter (announcer, incl. "combo", "prepare yourself", "game over") | `assets/audio/voice/*.ogg` | Kenney | https://kenney.nl/assets/voiceover-pack-fighter | CC0 1.0 |
| Heavy Battle 2 (fight music) | `assets/audio/music/fight_heavy_battle_2.ogg` | MintoDog | https://opengameart.org/node/183145 | CC0 1.0 |
| Space Battle (menu music) | `assets/audio/music/menu_space_battle.ogg` | MintoDog | https://opengameart.org/node/172812 | CC0 1.0 |
| Determination - Anime Style Music (dojo music; loudness-matched) | `assets/audio/music/fight_dojo_determination.ogg` | HydroGene | https://opengameart.org/content/determination-anime-style-music | CC0 1.0 |
| Boss_Koto (temple music; loudness-matched) | `assets/audio/music/fight_temple_boss_koto.ogg` | G_P | https://opengameart.org/content/bosskoto | CC0 1.0 |
| Midnight Drive (rooftop music; loudness-matched) | `assets/audio/music/fight_rooftop_midnight_drive.ogg` | congusbongus | https://opengameart.org/content/midnight-drive | CC0 1.0 |
| Funky House (beach music; loudness-matched) | `assets/audio/music/fight_beach_funky_house.ogg` | Of Far Different Nature | https://opengameart.org/content/funky-house | CC0 1.0 |
| Jazzy Battle Theme (night market music; loudness-matched) | `assets/audio/music/fight_market_jazzy_battle.ogg` | MintoDog | https://opengameart.org/content/jazzy-battle-theme | CC0 1.0 |
| Determined Pursuit (Express train stage music; loudness-matched) | `assets/audio/music/fight_train_determined_pursuit.ogg` | Emma_MA | https://opengameart.org/content/determined-pursuit-epic-orchestra-loop | CC0 1.0 |
| Dragon Dance, loop version, from "Chinese Game Music" (Kowloon Courtyard music; loudness-matched) | `assets/audio/music/fight_courtyard_dragon_dance.ogg` | BiteMe Games | https://bitemegames.itch.io/chinese-game-music | CC0 1.0 |
| AMB Rain Loop 1 (rooftop rain) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/rain.ogg` | kresiek-the-furry | https://opengameart.org/content/amb-rain-loop-1 | CC0 1.0 |
| High traffic road sounds (distant traffic: rooftop, market) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/city_traffic.ogg` | ignasd | https://opengameart.org/content/high-traffic-road-sounds | CC0 1.0 |
| Background voices (market chatter) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/market_chatter.ogg` | pauliuw | https://opengameart.org/content/background-voices | CC0 1.0 |
| Crowd Shouting/Speaking Ambience (ring crowd) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/arena_crowd.ogg` | starninjas | https://opengameart.org/content/crowd-shoutingspeaking-ambience | CC0 1.0 |
| Applause in a large hall or church (applause after a K.O.) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/crowd_cheer.ogg` | expl0it3r | https://opengameart.org/content/applause-in-a-large-hall-or-church | CC0 1.0 |
| Beach Ocean Waves (beach waves; recorded by jasinski) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/waves.ogg` | qubodup | https://opengameart.org/content/beach-ocean-waves | CC0 1.0 |
| Park ambiences: birds and wind (temple, dojo, beach) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/birds.ogg`, `wind.ogg` | thimras | https://opengameart.org/content/park-ambiences | CC0 1.0 |
| Fire Crackling (market grills) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/fire_crackle.ogg` | antumdeluge | https://opengameart.org/content/fire-crackling | CC0 1.0 |
| Solo Seagull Sound Effects (beach) (trimmed, looped with a crossfade, loudness-matched) | `assets/audio/ambience/seagull_*.ogg` | rango-mango | https://opengameart.org/content/solo-seagull-sound-effects | CC0 1.0 |
| Group Ooh 1 & 2, Group Wow 1 & 2 (crowd reactions) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_ooh_1-2.ogg`, `crowd_wow_*.ogg` | CHallSmith | https://freesound.org/people/CHallSmith/packs/46348/ | CC0 1.0 |
| Crowd Ooohs and Ahhhs in Excitement (crowd reactions) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_ooh_3-6.ogg` | noah0189 | https://freesound.org/people/noah0189/sounds/264499/ | CC0 1.0 |
| Crowd aah, Crowd shock (crowd reactions) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_ooh_7-8.ogg`, `crowd_gasp_1.ogg` | anonymous (deleted Freesound account) | https://freesound.org/s/324896/, https://freesound.org/s/324898/ | CC0 1.0 |
| CRWDReac_Crowd Gasping In Surprise, Voiced 02 (crowd reactions) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_gasp_2.ogg` | Shane Vincent (ShangusBurger) | https://freesound.org/people/ShangusBurger/sounds/764320/ | CC0 1.0 |
| R27-20 Small Crowd Gasps (crowd reactions) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_gasp_3-4.ogg` | craigsmith | https://freesound.org/people/craigsmith/sounds/480774/ | CC0 1.0 |
| Millerntor Stadium Crowd Reaction Excited 01 (crowd roars at a K.O.) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_roar_1-4.ogg` | Philipp Feit, Sound Of Sankt Pauli (itmightgetloud) | https://freesound.org/people/itmightgetloud/sounds/829453/ | CC0 1.0 |
| 19 Football Crowd - Reaction To Goal (crowd roar at a K.O.) (cut from the Freesound preview, trimmed, faded, loudness-matched) | `assets/audio/ambience/crowd/crowd_roar_5.ogg` | D.jones | https://freesound.org/people/D.jones/sounds/528799/ | CC0 1.0 |
| R07-27 Sporting Event with Steady Cheers (cheering that swells with the action; looped with a crossfade) (loudness-matched) | `assets/audio/ambience/crowd/crowd_cheering_loop.ogg` | craigsmith | https://freesound.org/people/craigsmith/sounds/486214/ | CC0 1.0 |
| freight train pass fast short heavy rail track clacks (Express rumble) (cut from the Freesound preview, looped with a crossfade, loudness-matched) | `assets/audio/ambience/train_rumble.ogg` | kyles | https://freesound.org/people/kyles/sounds/455775/ | CC0 1.0 |
| Train Track Joints Slow (Loop) (Express track clatter) (cut from the Freesound preview, looped with a crossfade, loudness-matched) | `assets/audio/ambience/train_clack.ogg` | KayleRustone | https://freesound.org/people/KayleRustone/sounds/474977/ | CC0 1.0 |
| Train Pass By (the train passing the other way; trimmed, faded, loudness-matched) | `assets/audio/ambience/train_pass.ogg` | GreekIrish | https://freesound.org/people/GreekIrish/sounds/254778/ | CC0 1.0 |
| Jet landing flyover (the courtyard's low jet; mono, faded, normalised, from the Freesound preview) | `assets/audio/ambience/jet_flyover.ogg` | tbaucom | https://freesound.org/people/tbaucom/sounds/648468/ | CC0 1.0 |
| 121003 Pigeon flock fly away, wing flaps, Toronto (courtyard pigeons; trimmed, faded, from the Freesound preview) | `assets/audio/ambience/pigeons_takeoff_1.ogg` | TRP | https://freesound.org/people/TRP/sounds/616623/ | CC0 1.0 |
| pigeon_take_off (courtyard pigeons; trimmed, faded, from the Freesound preview) | `assets/audio/ambience/pigeons_takeoff_2.ogg` | sinewave1kHz | https://freesound.org/people/sinewave1kHz/sounds/207387/ | CC0 1.0 |
| RollerShutter_IT.wav (the corner store's shutter; a 4 s cut, faded, from the Freesound preview) | `assets/audio/ambience/shutter_roll.ogg` | uniuniversal | https://freesound.org/people/uniuniversal/sounds/617980/ | CC0 1.0 |
| Dirty Tiles texture (courtyard floor) | `assets/stages/courtyard/textures/dirty_tiles_*` | Matterfield, Jenelle van Heerden / Poly Haven | https://polyhaven.com/a/dirty_tiles | CC0 1.0 |
| Concrete Wall 006 texture (courtyard walls, lane) | `assets/stages/courtyard/textures/concrete_wall_006_*` | Dario Barresi, Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/concrete_wall_006 | CC0 1.0 |
| Qwantani Dusk 2 (Pure Sky) HDRI (2k; night market sky) | `assets/stages/market/qwantani_dusk_2_puresky_2k.hdr` | Greg Zaal, Jarod Guest / Poly Haven | https://polyhaven.com/a/qwantani_dusk_2_puresky | CC0 1.0 |
| Kloppenheim 06 (Pure Sky) HDRI (2k; Express train sky) | `assets/stages/train/kloppenheim_06_puresky_2k.hdr` | Greg Zaal, Jarod Guest / Poly Haven | https://polyhaven.com/a/kloppenheim_06_puresky | CC0 1.0 |
| Aerial Grass Rock texture (Express fields) | `assets/stages/train/textures/aerial_grass_rock_*` | Rob Tuytel / Poly Haven | https://polyhaven.com/a/aerial_grass_rock | CC0 1.0 |
| Asphalt 02 texture (market street) | `assets/stages/market/textures/asphalt_02_*` | Rob Tuytel / Poly Haven | https://polyhaven.com/a/asphalt_02 | CC0 1.0 |
| Brick Pavement texture (market sidewalk) | `assets/stages/market/textures/brick_pavement_*` | Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/brick_pavement | CC0 1.0 |
| Painted Plaster Wall texture (shophouses) | `assets/stages/market/textures/painted_plaster_wall_*` | Amal Kumar / Poly Haven | https://polyhaven.com/a/painted_plaster_wall | CC0 1.0 |
| Rusty Corrugated Iron texture (shophouse roofs) | `assets/stages/market/textures/rusty_corrugated_iron_*` | Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/rusty_corrugated_iron | CC0 1.0 |
| Wood Planks texture (stalls, electric poles) | `assets/stages/market/textures/wood_planks_*` | Amal Kumar / Poly Haven | https://polyhaven.com/a/wood_planks | CC0 1.0 |
| Painted Metal Shutter texture (shop shutters, Express train roofs) | `assets/stages/market/textures/painted_metal_shutter_*` | Dario Barresi, Rico Cilliers, Charlotte Baglioni / Poly Haven | https://polyhaven.com/a/painted_metal_shutter | CC0 1.0 |
| Male Grunt/Yelling sounds (Kenji, Brutus and Jin shouts; trimmed, normalized, Brutus pitched down) | `assets/audio/voice/fighters/kenji_*`, `brutus_*`, `jin_*` | HaelDB | https://opengameart.org/content/male-gruntyelling-sounds | CC0 1.0 (dual-licensed CC0 / OGA-BY 3.0; used under CC0) |
| Female Hurt Grunts & Groans (Rhea shouts; Valka's are other takes pitched to 0.86, Mira's pitched to 1.07, Lian's are Valka's takes pitched to about 0.95) | `assets/audio/voice/fighters/rhea_*`, `valka_*`, `mira_*`, `lian_*` | AuraVoice (Nocturnal_Vanguard) | https://opengameart.org/content/female-hurt-grunts-groans | CC0 1.0 |
| Swing whooshes | `assets/audio/sfx/swing_*.wav` | Synthesized for this project (filtered noise) | — | CC BY 4.0 (project original) |
| Key art wallpaper & boot splash | `assets/ui/wallpaper.png`, `splash.png` | Made for this project (`tools/build_key_art.py`): the title logo on black | — | CC BY 4.0 (project original) |
| Energy blast & super flash | `assets/audio/sfx/energy.wav`, `super.wav` | Synthesized for this project (sine sweeps + noise) | — | CC BY 4.0 (project original) |
| `fight_anims.res` (guard, kicks, sweep, uppercut, blocks, ...) | `assets/animations/` | Generated by `tools/build_fight_animations.gd` from the UAL clips | — | CC BY 4.0 (project original, from CC0 sources) |

Notes:
- `Superhero_Male_FullBody.gltf` was edited to point to `T_Hair_1_Normal.png` / `T_Eye_Normal.png` (the shipped file referenced missing `*_png.png` names).
- `T_Superhero_Male_Light.png` is the pack's `T_Superhero_Male_Ligh.png`, renamed.