Describe a lesson — or paste the chapter straight in. LessonPlay builds a real, playable lab simulation you can reason your way through, then hands you one link to keep or pass on.
Free while in beta · Nothing to install · Runs in any browser
You describe the lesson. The studio writes the simulation, plays it to a win to prove it works, and publishes it. You watch the whole thing happen.
Class 9 — separation of mixtures. Make them figure out which method to use instead of memorising the list.
Building a discovery lab: five mixtures, four tools, and no hint about which tool fits. Here we go.
Sand, salt and water are in the same beaker. Get the salt out — dry, and without losing it.
Four steps, and only the first one is work.
Paste the chapter section, drop the PDF, or just name the concept. It reads the activities and works out what a student would actually have to figure out.
Rules, levels and code are written in front of you, file by file. No spinner, no black box — you can see exactly what it decided and why.
The game opens next to the chat. Too easy? Wrong vocabulary for your class? Say so in a sentence and it edits the real thing.
Publish and you get a link. Students open it in any browser — no accounts, no installs, nothing to hand out but a URL.
Two kinds of game today, both built for chemistry. Every game is a real simulation with rules underneath — not a quiz with a lab-coat skin on it.
Discovery lab
The student meets an unknown and a bench of tools. Pick a test, run it, read what happened, narrow it down, commit an answer. The world stays consistent, so the only way through is reasoning — and guessing costs you.
Guided lab
A faithful, phone-shaped run of a textbook activity: set up the apparatus, do it in the right order, and watch the real consequence of getting the order wrong. The NCERT activity, with your hands on it.
The beta is chemistry-only on purpose — one subject, done properly, before we widen it. The engine underneath is subject-agnostic, so the rest follows.
AI that writes games writes broken games. So nothing reaches you until it has proven itself against three checks — and the third one is a machine playing your game to a win.
Structure, types and build. Every level is reachable and nothing dead-ends.
Winnable from the evidence given, impossible to brute-force, and not on rails. A level that can be clicked through doesn't ship.
The game is played all the way to a win through the same logic a player will hit. If it can't be finished, it isn't finished.
A game that fails any check can’t be published. The studio reads the failure report, fixes it, and runs the gate again — you just see the version that passed.
Built around how this actually gets used — a shared link, a short session, and whoever made it wanting to change one thing after watching it played.
A phone, a shared laptop, a projector at the front. Whoever opens the link just plays — no accounts, no installs, nothing to approve.
Games are built to be finished in one sitting, not a term. Short enough for a warm-up, a revision block, or an idle evening with one chapter.
Publish again and the old link still plays the old game. Change a level in March without breaking what you sent in January.
“Make level 3 harder.” “Use the words from our textbook.” “Add a step for safety goggles.” Come back any time and say what you want different.
No. You write the way you'd brief a helpful assistant — in sentences. The studio writes and tests the code itself; the code panel is there if you're curious, not because you need it.
Chemistry only. The beta is deliberately narrow: school chemistry, classes 8–10 — the kind of content in an NCERT chapter. Physics and biology use the same engine and are next.
A first playable version usually lands in a few minutes, while you watch. Tightening it — difficulty, wording, an extra level — is a sentence at a time after that.
Yes. Publishing gives you a link that plays in any browser, on a phone or a shared machine. Whoever opens it doesn't sign up for anything, and the link keeps working after you make changes.
You're the check that matters, and you play it before anyone else does. Tell it what's wrong in plain words and it edits the simulation — and nothing publishes until it passes the validation gate again.
Not very, and we'd rather say so. One game template today, a narrow slice of chemistry, and rough edges you will find. We're iterating in the open — the engine, the templates and the validation gate all move week to week. Try it, tell us where it falls short, and expect it to have changed by the time you come back.
Nothing during the beta. We'd rather have people using it and telling us what breaks than a pricing page.
Paste it in and see what comes back. It takes one sentence and a few minutes, and it’s free while we’re in beta.
Free beta · Chemistry, classes 8–10 · No card, no install