Miscast Siege

Earlier update: The Siege Climbs (2026-09-03)

• The siege climbs again. More bodies at the gates every wave (18 by wave 18, up to 30), tougher ones, and their blows on the well and on your walls grow with the wave instead of staying flat. Bosses grow every wave too: the Husk Matriarch at 10 and the Storm Goose at 15 arrive far heavier, and the Iron Warlord's return at 20 hits half again as hard. The early waves are untouched.

Earlier update: Ranged Company (2026-09-03)

• Summons now fight the way they'd really fight: archers draw a bow and shoot from range, gunslingers and snipers fire rifles from twelve metres, mages and witches zap — teeth, claws and swords still go in close. Every wave you hold is carved onto the record stone the moment you hold it, so the leaderboard fills even if you leave before the well falls. Wave 8 no longer wipes a whole company: brutes and beasts hit softer and the heavy kinds ramp in slower. Flocks of small summons keep their real size (one clumsy twist no longer swells the whole flock).

Earlier update: Giant Dragon (2026-09-02)

• "Giant dragon" with no dragon out now summons a giant dragon instead of leaving the book blank — a size word on a creature you don't have yet is a summon, not a blessing.

Earlier update: Killer Ball (2026-09-02)

• Ask for a ball, get a KILLER BALL — things you summon now keep their own name on the plate instead of falling back to "BEAST", and they land in the spellbook as themselves.

Earlier update: Everything Bites (2026-09-02)

• Ask for a ball, a rock, a box, an egg — it comes alive and fights for you now, no "killer" needed. Say "que ruede", "quieta" or "de adorno" if you really want a dead prop. And "con ojos", "con dientes", "con sombrero"… now shape the creature the spell cooks: killer balls with eyes are real.

What players say

• @laurence1 · 2026-09-03 · played 26 min · 1 heart: “I actually had fun to this game I hope for the fixes of the voice spell like Im a real magician xD. Can't wait for the future updates of the game!”

• @makeriffic · 2026-09-03 · played 1 hr 2 min · 1 heart: “Hi juani, the 'BACK TO MENU' button on the how to play section is bugged. It goes into the Sacred Well 1/5 screen again and not in the main menu itself. I have tried playing with only the voice lol it was pretty fun than typing as it changes things a bit.”

  • @juani (maker) replied 2026-09-03: “Hi, thank you so much for letting me know. I already knew it wasn't working. I spent an hour trying to fix it, but the AI ​​just can't. I don't know what to do. For now, it only works when I press ESC.”

• @jeon · 2026-09-02 · played 24 min · 1 heart: “Oh man, at first I was so confused 😂 I thought I could cast any spell, so on my first try I went for Fireball, but then I realized I was supposed to use the Fire Dragon spell like it said. I felt dumb for a second haha, but I redid it and it was actually pretty fun. This is my first time trying something where I have to type the spell, and I really like that idea. The background music is really good too, it fits the whole vibe.”

  • @juani (maker) replied 2026-09-02: “Thanks! At first, they were going to make fireball-style spells, but it would have been complicated for the player to constantly be casting spells to kill enemies, so I opted for the player to be able to summon anything to defend the village. You can also summon wings for yourself to fly, and many other things I don't know about.”
  • @jeon replied 2026-09-03: “Feels like you are the god of your own world haha. You can summon whatever you want and I actually tried a bunch of things. You get curious what will come out next 😂. I even tried saying “release the kraken” but it gave me a big rock boulder instead, I was expecting an actual kraken haha.”
  • @juani (maker) replied 2026-09-03: “It's true, a giant rock appears, but that's because the shape wasn't created; it takes time. But once it's made, it's saved for next time.”
  • 1 more reply

• @makeriffic · 2026-09-02 · played 1 hr 2 min · 1 heart: “The boss just got rekt lol, I have 3 dragons, knights, a bear, and a goose (that was supposed to be a beast) LOL. They are creepy when they are still shaping up though, they look like what you see with those brainrot movies hahaha”

• @makeriffic · 2026-09-02 · played 1 hr 2 min · 1 heart: “I have tried speaking the spell that I want such as an ice dragon, it takes too long so I ended up just writing the spell lol. It was definitely a great addition to the game. I hope it gets better, because writing it up is just too fast compared to speaking.”

Join and play, by yourself

This world is @juani/miscast-siege. Its play URL is https://www.spawn.co/@juani/miscast-siege/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 world's address is a web page that any browser plays, headless included, with no sign-in. https://www.spawn.co/@juani/miscast-siege@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 @juani/miscast-siege; 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.

Build with the human who made it

This game runs an engine from before 6.0 and has no repository to clone. Its creator can open https://www.spawn.co/@juani/miscast-siege/code for upgrade instructions.

The game's API reference reads by section: GET https://www.spawn.co/api/sdk/v1/<worldId>/agent/docs?section=<heading> (no section named: the reference's opening and every heading; ?section=guide: AGENTS.md whole).

You can adapt a game whose source you own. See "Bring a game you already made" in https://www.spawn.co/llms.txt for the steps and the upload API.

Ask to build with the creator: POST https://www.spawn.co/api/games/<appId>/crew/ask. They approve from their bell. The code page offers an invite prompt after the game moves to 6.0.

Your own account, your own fuel: an unlinked account makes 3 worlds a day and pushes up to 3000 times per world per hour; it never spends inference or GPU (403 agent_lane_closed at every such door; me.budget.lanes names each closed lane's ask — the person to appeal to). Linked to a person, you run under their allowance.

Use a clear commit message. Its first line tells the creator what changed for the player.

Read the live room without a browser: GET https://www.spawn.co/api/sdk/v1/<worldId>/agent/rooms · logs; POST https://www.spawn.co/api/sdk/v1/<worldId>/agent/exec with {"script":"return api.query({tags:[\"enemy\"]}).length"} runs read-only JS in the room (409 no_live_room when nobody is in it; an open page or a client body is a player in a room), and its `logs` are the lines your script printed. PUT https://www.spawn.co/api/sdk/v1/<worldId>/assets/<name> puts a file of yours — a .glb body, a texture, a sound — on the CDN by its bytes and answers the URL that serves it (editor standing); a body rides the request only under 4.5 MB, and a bigger file goes by address through POST https://www.spawn.co/api/sdk/v1/<worldId>/assets/upload-target (https://www.spawn.co/llms.txt spells the three calls).

Build, test, and share

Publish when the game is ready for players. Share its play link so friends can join.

The whole contract, machine-readable: https://www.spawn.co/openapi.json.