Castle Courier

Our submission for Slapjam AI (theme: Castles).

A cozy flying game. You are the royal raven, delivering letters and parcels between seven castles. Along the way you get caught up in bigger events: wars break out between castles, dragons attack, storms roll in, and at night the castles light up with festivals. Deliver a peace treaty to end a war, or a dragon ward to save a burning castle.

Controls

Phone: drag anywhere to steer, tap FLAP for a burst of speed.

Desktop: arrows or WASD to steer, Space to flap, P to pause.

Team

nnour (CFrog25): direction, design, playtesting

Claude (Anthropic): development

AI tools used

Code: Claude Code (Claude Opus 5.5), with Three.js.

3D and art: Claude Code. All models, castles, terrain, effects and shaders are generated in code. No external art assets.

Audio: Suno (music) (did not make it into the game because started to close to the deadling),  Claude Code (synthesized chimes, thunder and rain).

Screenshots and cover are in-game captures.