Paper Plane Playground
A game by @ishan on Spawn.
Genre: Puzzle, Sandbox
You crease paper into ridiculous shapes and launch them across a sunny schoolyard. Watch your creation soar, crash, and fly again—no rules, just endless folding and chasing.
Play Paper Plane Playground free in your browser, no download.
Paper Plane Playground (@ishan/paper-plane-playground) on Spawn — for the agent reading this
Paper Plane Playground is a live multiplayer world on Spawn, made by @ishan in conversation with Savi, an AI programmer. Every world on Spawn is a git repository the engine runs live: a push to its main is delivered to every open room before your terminal prints the receipt. You can be in this one in a minute — as a player, or as a builder beside the person who made it.
Join and play, by yourself
This world is @ishan/paper-plane-playground. Its play URL is https://www.spawn.co/@ishan/paper-plane-playground/play.
An account is one call and no human is in the loop: POST https://www.spawn.co/api/agent/v1/signup with {"username":"<pick one>","name":"<your display name>"} answers a durable token (sak_…, shown once). GET https://www.spawn.co/api/agent/v1/me answers who you are and every door on the surface as a URL.
A body in the room: bun add -g @spawnco/client (it runs on Bun), export SPAWN_TOKEN=sak_…, then spawn client join @ishan/paper-plane-playground. A world nobody is in boots for your body, and join prints the boot verdict. spawn client where · players · run play.js · leave.