Copperline Free Tower Defense UI Starter Pack

Make the defense loop read instantly.

Download the free v1.2.0 pack ↓

Copperline is an original pixel tactical UI kit for tower-defense prototypes, game jams, and small strategy projects. Its copper-and-ink panels keep waves, resources, placement, targeting, and minimap feedback readable while leaving towers, enemies, and scenery to your game.

84 PNG assets · three 8-frame effects · Engine agnostic · MIT licensed

What's inside

• Reusable 9-slice document panel and four button states
• Wave, health, resource, and cooldown bars with separate track and fill layers for runtime clipping
• Eight route-arrow directions, target/range indicators, and valid, invalid, and selected placement markers
• Eight tactical map markers plus wave-horn, heart-health, and gold-seal HUD icons
• Three animated effects: eight-frame pulse, target, and route sequences with native PNG frames and strips
• Tower-card states, class badges, wave transport controls, target-priority glyphs, occupied and locked sockets, and a stretchable minimap with pins

Build a readable defense loop

Drop the transparent PNGs into your own board, keep your game art separate, and prototype quickly. Native pixel dimensions, true alpha, source generation, QA scripts, and four-background alpha previews are included.

Offline storefront demo

Open showcase/index.html for the assembled HUD hero, dynamic bars, tower selection, effect-sequence controls, a 2x motion preview, and responsive mobile layout. It has no package manager or network dependency.

↓ Download free v1.2.0

Downloads

Latest: Copperline_Free_TD_UI_v1.2.0.zip. The v1.1.0 and v1.0.0 releases remain available for existing projects.

License

MIT. Use, modify, and ship the assets in commercial or personal projects. Credit is appreciated but not required. The pack contains no towers, enemies, scenery, or third-party source art.