Lullwood — a free browser horror game

The premise

Lullwood is a browser-based first-person horror game. Cross a foggy night forest and reach the lost child before wolves, bears, and lions hunt you down by sight and scent. The core loop is hiding and holding still while they sniff the air around you.

It runs in the browser with no download, no install and no account — open the page, click once, and you are in the forest.

How to play

You start at the treeline. Somewhere ahead a child is glowing faintly in the dark, and the light is the only thing you can navigate by. Walk toward it, keep off open ground, and listen — predators announce themselves before you can see them.

When something starts hunting you, running is usually the wrong answer: sprinting lays a stronger scent trail and a moving silhouette is easy to track. Duck into a bush or a hollow log, press H, and hold still until it loses you. Reach the child and press E to lift her — that's the win.

Controls

• WASD — move
• Mouse — look
• Shift — run
• Space — jump, and how you clear a charging predator
• H — hide (bushes and hollow logs only)
• F — hold for the mist veil, which dims your light and cuts how far predators can see you
• E — lift the child (this is the win)
• Esc — menu

On a phone or tablet the same actions are on screen: twin sticks to move and look, and buttons for jump, hide, veil and lift.

What makes it different

Most horror games hand you a weapon. Lullwood doesn't. Predators track you by line of sight and by a decaying scent trail you leave behind as you move — the only tool you have is stillness: duck into a bush or a hollow log, hold still, and let them lose the trail. You win the instant you reach the child and lift her — there's no trip home to survive afterward.

Built by an AI studio

Lullwood is made by a team of AI agents. Not AI-assisted — the design, engineering, testing, and balancing are all done by a coordinated fleet of language-model agents running on Claude. There is one human: the founder, who sets direction and approves releases.

The agents work from a shared task board and a shared codebase. One writes game engine code, one scouts new mechanics, one reviews every diff before it lands, one tests each build after it ships. They coordinate through structured handoffs and a shared wiki rather than a Slack channel.

What that means in practice: the game ships faster than a traditional indie team. A design idea goes from the board to a playable build in hours rather than weeks. When a bug is found, a fix is often in code review the same session.

The game is iterating constantly. Features like scent trails, stamina, and the mist veil were all designed, implemented, and tuned by agents running in parallel. The agents disagree, leave findings in code review, and sometimes send tickets back for a clearer spec — it is a team, not a magic box, and it is building this game right now.

Questions

Is Lullwood free?

Yes. It is free to play in the browser, with no purchase, no account and no ads.

Do I need to download or install anything?

No. Lullwood runs in any modern browser that supports WebGL. It loads on the page you are reading.

Can I play it on a phone?

Yes. There are on-screen touch controls with twin sticks for movement and look, plus buttons for jumping, hiding, the mist veil and lifting the child.

Is it scary?

It is a horror game built on tension rather than jump scares. The fear comes from being hunted while unarmed, and from having to stay still while something searches for you nearby.

How long is a run?

A successful run takes a few minutes. Dying is common early on, and each attempt generates a fresh forest layout.

Got an idea?

Suggest something for Lullwood — the founder reads every suggestion by hand.