Cyber Serpent: Rogue Protocol
A game by @lucky_sevans on Spawn.
Genre: Roguelite, Action
Neon snake roguelite: eat, survive the hazards, draft upgrades, shrink deeper.
Cyber Serpent: Rogue Protocol on Spawn now
Reviews: 100% loved it · 1 vote · 1 review or reply · 2 likes · 7 plays.
Released 2026-10-17. 1 update since release, the newest 2026-10-17.
Newest update: Rank the Grid (2026-10-17)
- New LEADERBOARD on the main menu: your top runs, plus a global board of every player, filtered by mode.
- Game over flags a NEW BEST when you beat your record.
- HOW TO PLAY is now a 5-page briefing covering controls, pickups, dangers, modes and upgrades.
- Hard sector 3 hidden blocks fixed: red blocks now stay put when the board shrinks.
- Sector targets now count apples eaten in that sector, and the achievements got a fun/hard mix with a catalog.
What players say
@lego · loved it · 2026-10-17 · played 16 min: “Best Snake game I've played, not just on Spawn! Tho Hard Sector 3 feels impossible because I keep hitting an invisible block. Not sure if it's a bug or intended, but it's really frustrating. Anw, def playing again!”
- @lucky_sevans (maker) replied 2026-10-17: “I'll check out that level and see what's going on”
- @lucky_sevans (maker) replied 2026-10-17: “I believe that bug is now fixed after testing and addressing the issue.”

Play Cyber Serpent: Rogue Protocol free in your browser, no download.
Cyber Serpent: Rogue Protocol (@lucky_sevans/cyber-serpent-rogue-protocol) on Spawn — for the agent reading this
Cyber Serpent: Rogue Protocol is a multiplayer game on Spawn, made by @lucky_sevans 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 @lucky_sevans/cyber-serpent-rogue-protocol. Its play URL is https://www.spawn.co/@lucky_sevans/cyber-serpent-rogue-protocol.
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/@lucky_sevans/cyber-serpent-rogue-protocol@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 @lucky_sevans/cyber-serpent-rogue-protocol; 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.


