B.O.B. is the AI game builder for The Grotto. Describe a game to get a playable preview, or open a full coding workspace that shows the plan, files, and cost as it builds. Saves, events, leaderboards, and token gates come baked in.
engines
templates
sandbox capacity
first preview
Plan, code, terminal, and preview stream in as B.O.B. works. No black box.
A live preview mounts and refreshes with every change, so you test the loop as it's written.
Each build runs in its own throwaway workspace - no access to your wallet, secrets, or other projects.
Top up once and every run draws from your balance. You always see the cost up front.
Live build feed
Comes wired in
Describe your game in plain words - chat plus a live preview, no engine skills needed.
A full coding workspace: live files, diffs, inline error checks, a terminal, and every change on the record.
Kick off from a dungeon crawler, runner, tower defense, match-3, platformer, or a Unity export.
Every game saved with its status, run costs, collaborators, and credit balance.
Cloud saves, events, leaderboards, and token gates are wired in from the start.
See a quote before each run and watch the cost as B.O.B. builds. No surprises.
Pick a tier per run. Lite is fast and economical; Pro brings higher reasoning and a bigger context for ambitious rebuilds. Your workspace - Simple or Advanced - is a separate choice.
Kimi K2.6 · 262K context
Fast drafts, HTML5 fixes, smaller Three.js loops
GLM 5.2 · 1M context
Long horizon rebuilds, migrations, Unity WebGL plans
Start from a ready-to-run 3D project with a live browser preview and a one-click publishable build.
Bring a Unity WebGL export. B.O.B. repairs it, wraps it for The Grotto, and gets it preview-ready.
Drop in an HTML5 zip. B.O.B. fixes it up, wires in saves and events, and packages it to publish.
Top-down Three.js crawler where players collect crystals, dodge hazards, and bank a run score.
One-button HTML5 runner with rising speed, combo multipliers, and a global high-score board.
Wave-based Three.js tower defense with buildable towers, currency economy, and boss waves.
From your idea to a published Grotto game - what every build does, what it costs, and what comes baked in.
From a plain-language idea to a published game on The Grotto. Every step is shown to you as it happens, and nothing spends until you have seen the price.
Tell B.O.B. your genre, core loop, art direction, and which Grotto features you want.
Get an up-front quote and lock in the most a run can cost. No surprise bills.
B.O.B. spins up a throwaway workspace just for your game, sealed off from everything else.
Watch B.O.B. plan, write code, and run checks live. Every change is yours to review.
Your game gets a real browser playtest plus save, leaderboard, and asset checks before it ships.
Approve the result and B.O.B. publishes it straight to The Grotto.
Top up once and build. Your HERESY is sold for USDC and credited to your balance in plain dollars; every run draws from it, so you always know what a build costs before it starts.
Every game B.O.B. builds ships ready for The Grotto — the connective tissue is already wired in, so you can focus on the fun part.
Player sign-in, cloud saves, live events, leaderboards, and presence — already wired into your game.
Gate skins, passes, and items behind the NFTs and tokens a player actually owns, checked on the server so it can't be faked.
Ship through preview links and one-click rollback. Your game stays hosted and safe to update.
Already have a Three.js project, a Unity WebGL export, or an HTML5 zip? B.O.B. cleans it up and gets it running on The Grotto.
Open the full studio to chat with B.O.B., pick a template, or jump straight into the builder.