Starfall Combat HUD
An in-game overlay for a space shooter: a health bar with a delayed damage chip, screen shake, floating damage numbers, hotbar cooldowns, a wave banner and a live minimap.
read: RollHull(), TakeHit(), NextWave()
Current work
Cascade — Motion & Transitions for UI Toolkit
UI Toolkit gave you components. It never gave you motion.
Cascade is a runtime motion library for UI Toolkit (UXML/USS): physics springs that keep their velocity through an interruption, timeline sequencing, stagger, named states, enter/exit and screen transitions, and hover/press micro-interactions. Zero third-party dependencies, no native code, Unity 6000.0+.
// the whole API surface is this shape
el.Animate().MoveY(0f, .45f).Spring(SpringPreset.Bouncy);- Three authoring routes — a fluent C# API, an inspector with live edit-mode preview, or validated JSON generated by an AI assistant.
- Lifecycle-safe — never writes to a detached panel; cancellation leaves values where they are rather than snapping.
- Zero per-frame GC, enforced by tests rather than asserted in a readme.
Get started Read the docs API reference
Work samples
Play it in a browser
Cascade Blocks is a falling-block game with no motion code of its own. The menu stagger, the screen transitions, the line-clear sweep, the score count-up and the arcade initials caret are all the package. It exists as a stress test: motion libraries demo well on three buttons and fall apart on a real screen with a game loop competing for frames, so we built the real screen.
Cascade Audio Studio New · playable
A music player where the whole room follows the song: fire for metal, lasers and a neon grid for synthwave, rain for lo-fi. Loud passages make the fire roar and the rain pour, each beat lands as a surge, a flash or a gust, and pausing freezes every effect mid-air. You can scratch the record, drag the mixer faders and spam the reactions. Every animation is a Cascade tween; the sample comes to Cascade in a future update.
Play Audio Studio → How it was built
Four demo screens Pro · next update
Real interfaces, not three buttons on a grey background: each is a complete Unity UI Toolkit scene animated with Cascade, with a short commented driver script to learn from. They ship as samples with Cascade Pro; the clips below are recorded from the scenes, not mocked up.
Pocket Shop
An editorial storefront: products stagger in, cards lift on hover, ADD TO BAG flies a dot into the bag, and VIEW opens a detail panel on a spring.
read: AddToBag(), SelectCategory()
Afterhours Audio Studio
A listening room that moves with the music: looping meters and vinyl that pause where they stop, title crossfades on track change, and a confirmation that fades in, holds and fades out.
read: ChangeTrack(), Share(), DriftMeter()
Mission Control Dashboard
A project dashboard: a spring drawer for new tasks, page transitions, named card states, hover feedback and a motion-mode toggle that respects reduced motion.
read: OpenDrawer(), NavigateTo(), CycleMotionMode()
Documentation
Cascade docs
Guides for animating Unity UI Toolkit with Cascade: getting started, how to animate a
VisualElement, spring animation, staggered lists, enter/exit and screen transitions, and a recipe
book. The package also ships them under Documentation~, with a Framer Motion map, a
designer workflow and an AI authoring guide.
Contact
- see the Asset Store publisher page
- Asset Store
- Twitched on the Unity Asset Store
- X
- @Twitchedddd
- Bluesky
- @twitchedd.bsky.social
- u/twitcheddd
- GitHub
- github.com/twitchedd
- itch.io
- twitchedd.itch.io