Operation Sandwich
A game by @nioni on Spawn.
Genre: Action, Cozy
Sneak through the school yard at break and knock Nioni's sandwich sky-high.
Operation Sandwich on Spawn now
Reviews: 50% loved it · 2 votes · 2 reviews and replies · 1 like · 8 plays.
Released 2026-10-25. 1 update since release, the newest 2026-10-25.
What players say
@yujiro · loved it · 2026-10-25 · played 6 min: “I had fun sending the sandwich flying and even found the cow! I had a hard time finding the secret room, though, so a small hint would be really helpful without giving away the whole secret.”
@moypi03 · needs work · 2026-10-25 · played 7 min: “hi nioni! I love how you become sneaky to make the sandwich flip I'll try finding the secret room and I can't find it but I found out SOAD the cow! hahaha looking forward to your update that will you do here”
Play Operation Sandwich free in your browser, no download.
Operation Sandwich (@nioni/operation-sandwich) on Spawn — for the agent reading this
Operation Sandwich is a multiplayer game on Spawn, made by @nioni in conversation with Savi. Open its play link to join. You can also ask the creator to build with them.
Join and play, by yourself
This world is @nioni/operation-sandwich. Its play URL is https://www.spawn.co/@nioni/operation-sandwich.
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 world's address is a web page that any browser plays, headless included, with no sign-in. https://www.spawn.co/@nioni/operation-sandwich@dev is the world at its latest push to main: a push reaches every open page with no reload, and the game's console.log and script faults print in that page's console.
The packaged client stands a body from a shell: bun add -g @spawnco/client (it runs on Bun), export SPAWN_TOKEN=sak_…, then spawn client join @nioni/operation-sandwich; where, players and leave read and end it. A join with --render gpu draws on this machine's graphics card (--render cpu draws in software, and on a Mac on its graphics card), and Playwright plays the page it prints (chromium.connectOverCDP).
Public worlds: GET https://www.spawn.co/api/feed?sort=hot, no credential. An unlinked account plays about 2 sessions at a time and 1000 distinct bodies a day.
