Prismbound

Prismbound is a tiny turn-based spirit-taming RPG made for js13kGames 2026: Unicorns and Rainbows.

You play a unicorn wandering a fractured prism world, finding elemental spirits hiding in tall grass and trying to convince them that getting repeatedly blasted with rainbow magic is technically friendship.

Harmonize spirits, build a team of three, train them to level 10, evolve them into stronger forms, discover the six hidden Prism Echoes and master all 12 forms. Do that and the Prism Seal opens, because apparently twelve fully trained magical creatures wasn't enough paperwork.

Battles use six affinities:
Solar → Tide → Grove → Moon → Volt → Ember → Solar

Exploit weaknesses, manage cooldowns and shields, swap spirits to trigger Shift Resonances, build down enemy Discord and time your Harmonize attempt to capture new forms.

There are also Guardians, hidden Echoes, a Sanctuary for managing your collection, and the Prism Warden waiting at the end.

The whole submitted game fits inside the js13k 13 KiB ZIP limit. No external art, music, libraries or asset downloads. Just JavaScript, Canvas, procedural audio and some questionable decisions regarding available bytes.

Controls
Movement: WASD / Arrow Keys
Interact / Confirm: Enter / Space
Battle moves: 1-4
Shift Spirit: S
Prism / Harmonize: H
Run: R
Menu / Save / Back: Esc
How to Play: ?
Mute: M
Mouse works for menus and battle controls.