Stack Skyline (tower) art assets. Every file below is CC0 1.0 (public domain dedication).
Licenses were re-checked on the source pages on 2026-10-14. Files were resized or recoloured for this game; the originals are unchanged.

Zerove-Regular.woff2
  Zerove font, by GGBotNet. Source: https://ggbot.itch.io/zerove-font
  File: https://raw.githubusercontent.com/ggbotnet/fonts-cc0/main/Zerove/Web%20Open%20Font%20Format%20(.woff)/Zerove-Regular.woff2
  License: CC0 1.0 (the repo LICENSE is CC0-1.0). Also embedded as base64 in /assets/covers/tower.svg and tower-banner.svg.

Jupiteroid-Bold.woff2, Jupiteroid-Regular.woff2
  Jupiteroid font, by GGBotNet. Source: https://ggbot.itch.io/jupiteroid-font
  Files: https://raw.githubusercontent.com/ggbotnet/fonts-cc0/main/Jupiteroid/Web%20Open%20Font%20Format%20(.woff)/
  License: CC0 1.0. The Bold weight is also embedded as base64 in the cover/banner SVGs.

pattern-chevron.png (pattern_07)
  Pattern Pack, by Kenney (kenney.nl). Source: https://kenney.nl/assets/pattern-pack
  License: CC0 1.0. Downscaled from 256 px to 64 px and converted to white-on-transparent so it can be tinted gold.

smoke1.png (whitePuff00), smoke2.png (whitePuff08)
  Smoke Particles, by Kenney. Source: https://kenney.nl/assets/smoke-particles
  License: CC0 1.0. Downscaled to 128 px.

spark.png (spark_01), star.png (star_01), flare.png (flare_01)
  Particle Pack, by Kenney. Source: https://kenney.nl/assets/particle-pack
  License: CC0 1.0. Transparent versions, downscaled from 512 px to 64 px.

cloud1.png, cloud2.png, cloud3.png (PNG/Flat/cloud1-3)
  Background Elements, by Kenney. Source: https://kenney.nl/assets/background-elements
  License: CC0 1.0. Downscaled to 160 px wide. They are tinted ivory at runtime.

marble.jpg
  Marble016 (Color map only), by ambientCG. Source: https://ambientcg.com/view?id=Marble016
  License: CC0 1.0 (https://ambientcg.com/license). Resized to 512x512, JPEG quality 68.

(embedded only) paper grain in /assets/covers/tower.svg and tower-banner.svg
  Paper004 (Color map only), by ambientCG. Source: https://ambientcg.com/view?id=Paper004
  License: CC0 1.0. Resized to 256x256 and embedded as base64. It is not shipped as a separate file.

--- Art round 2 (added 2026-10-14; licences re-checked on the source pages that day) ---

pattern-meander.png (pattern_12), pattern-meander-gold.png (same tile, pre-tinted gold #e2b33c at 45% alpha)
  Pattern Pack, by Kenney (kenney.nl). Source: https://kenney.nl/assets/pattern-pack
  Download: https://kenney.nl/media/pages/assets/pattern-pack/e787377a73-1721940715/kenney_pattern-pack.zip
  License: CC0 1.0 (page: "Creative Commons CC0"). From PNG/Default, downscaled 256 -> 64 px, converted to white-on-transparent
  (alpha = luminance). The gold copy is also embedded as base64 in /assets/covers/tower.svg and tower-banner.svg.

pattern-rivet.png (pattern_73)
  Pattern Pack, by Kenney. Source: https://kenney.nl/assets/pattern-pack. License: CC0 1.0. 64 px, white-on-transparent.

pattern-diamond.png (pattern_61), pattern-diamond-gold.png (same tile, pre-tinted gold at 10% alpha)
  Pattern Pack, by Kenney. Source: https://kenney.nl/assets/pattern-pack. License: CC0 1.0. 64 px, white-on-transparent.

gold-foil.jpg
  Metal048A "Metal 048 A" (Color map only), by ambientCG. Source: https://ambientcg.com/view?id=Metal048A
  Download: https://ambientcg.com/get?file=Metal048A_1K-JPG.zip
  License: CC0 1.0 (ambientCG: "All assets are released under the Creative Commons CC0 license", https://ambientcg.com/license).
  Resized 1024 -> 256 px, JPEG quality 70. Also embedded as base64 in /assets/covers/tower.svg and tower-banner.svg.