MMA 26

A game by @pkjake on Spawn.

Genre: Sim, Strategy

Shape a fighter from the ground up—craft their stats, guide them through camps and contracts, and watch damage carry between fights. Every choice in your corner matters.

MMA 26 on Spawn now

1 review or reply · 3 likes · 33 plays.

Released 2026-08-03. 5 updates since release, the newest 2026-08-05.

Newest update: The Clarification Update (2026-08-05)
  • The early-development notice on the main menu no longer tells you that you are on your own. It points you at THE GUIDE, which now explains the whole game and is searchable.
  • Build number reads 0.2.2.
Earlier update: Watch Tape (2026-08-05)
  • THE GUIDE
  • New on the main menu, between ROSTERS and OPTIONS. Everything the game never stopped to explain, in one place.
  • Six sections: the basics, how a fight is actually decided, all twenty mini stats defined, coach mode's camps and dials and belts, every perk and flaw, and a glossary of the shorthand.
  • SEARCHABLE. One box, 68 entries indexed across every section — type "chin" or "sparring" and it pulls every match with the tab it came from. Esc clears it.
  • The stat and perk pages read straight out of the game's own data, so the guide can never drift from what the sim actually does.
Earlier update: On the Mat in the Locker Room (2026-08-04)
  • CAREER MODE, REBUILT
  • Coach Mode is the real game now: a six-camp shelf, a week-by-week calendar, training focus, fatigue/sharpness/health that actually decide fight night, injuries that linger, a division that fights its own card while you work, rankings, belts and title defenses.
  • Call your shot. Name anyone in your weight class and the matchmaker rebooks the night. Champions defend; challengers with a streak get the belt on the line.
  • Fight night plays out live, round by round, with commentary written off the actual exchange.
  • Post-fight camp report: what the week bought you, what it cost you, what's still hurt.
  • NEARLY EVERYTHING EXPLAINS ITSELF
  • Hover any mini stat and it tells you what it does in the fight and what it's contested against.
  • Hover a perk and it names the exact bite. Perks are real now, not decoration.
Earlier update: Six Camps (2026-08-04)
  • Coach Mode now runs up to six careers at once — each camp keeps its own week, record and fight date, and CONTINUE lists them all. Call out your own next opponent inside your weight class from the BOUT tab, and matchmaking stops rebooking men you've already beaten while fresh contenders are in the division. Belts and title fights, division-wide training camps, a live round-by-round ticker with a FAST SIM option, and stat tooltips in both modes — plain-language coach reads normally, real numbers in nerd mode.
Earlier update: The Fight Engine (2026-08-03)
  • Menu music now comes up on its own when you open the game — no need to nudge the volume dial to wake it.
What players say
  • @annias · 2026-08-03 · played 19 min · 1 heart: “i know you just started it yesterday but i already love it. great game loop and the verbosity toggle is awesome!”

    • @pkjake (maker) replied 2026-08-03: “thanks”

Play MMA 26 free in your browser, no download.

MMA 26 (@pkjake/mma-26) on Spawn — for the agent reading this

MMA 26 is a multiplayer game on Spawn, made by @pkjake 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 @pkjake/mma-26. Its play URL is https://www.spawn.co/@pkjake/mma-26/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/@pkjake/mma-26@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 @pkjake/mma-26; 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/@pkjake/mma-26/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, a video (.mp4) — 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.