lightlab
Playtest 01

A small experiment in light

One pulse.
Your invention.

Arrange a few curious tools.
Send some light. See what follows.

Light every Goal in one run.
They can light at different times.
Once lit, they stay lit.

No timer. No rush. Change your mind.

The workbenchYour work stays in this browser

Experiment 01 · Mirror

A change of direction

Choose a tool from the kit, then choose a square.

0collection
points

0 of 1 Goals litOne launch. One source pulse.

EditingReady when you are
SourceGoalWall

Launch sends one pulse from the Source. Goals stay lit for this run.

Make a little detour.

Pick a tool below, then choose a free square on the board.

Look a little closerEvents, pace & preferences

This playtest is soundless. Pace and motion never change the result.

What happened

Each step advances one complete tick.

  1. Launch an arrangement to follow its light.
The small print, made useful

Follow the light.

Light each Goal at least once in one run. They may light at different times and stay lit for that run.

  1. 01
    Make an arrangement.

    Choose a tool in your kit, then tap an empty square. Tap a placed tool to select it; tap it again to rotate. Rotate, Move, and Remove are also beside the board.

  2. 02
    Launch one pulse.

    The Source sends light once. Light travels straight across empty squares. Walls and Goals stop it.

  3. 03
    Watch, then revise.

    Pause or step through the reaction. Stop & edit returns to your arrangement. A new launch clears the Goals and restores your tools’ starting settings.

A Flip gate waits for light.

When light arrives, it sends that light in the direction shown, then changes its instruction for a later arrival. Changing the arrow creates no new light.

Every experiment is available from the start. You can skip the introductions. A successful arrangement earns 100 points, plus 25 for each tool left in its kit. Every placed tool counts, even if light never reaches it. Each experiment keeps its best score; repeating it adds nothing.
Three tools. Many possibilities.

Meet the toolkit.

Mirror

Turns arriving light through a right angle. Rotate it to choose either diagonal.

Splitter

When light arrives from any direction, sends a pair along its selected axis. Simultaneous arrivals trigger one pair.

Flip gate

When light arrives, sends ↑ Up. It sends that arriving light, then changes to the opposite direction. It waits for more light before sending again.

Rotate to choose the first output: Up, Right, Down, or Left. Simultaneous arrivals trigger it once.

You do not have to use every tool in your kit. Light every fixed Goal.