Lumen Grid: Light the City

One round. Exactly 60 seconds. A dark city sits below a glowing data centre, and every tile you tap turns a line of light toward the buildings that are still waiting for power. Close a route and the building switches on. Close a route that feeds several buildings at once and you land a combo.

Built for the show floor: visitors scan a code at the Lumen Grid stand and play on their phones, a big screen runs a self-playing demo between players, and when time runs out every route snaps into place and the whole skyline lights up before your score card appears.

How to play

Your goal is to light as many buildings as you can before the 60-second clock runs out.

• Tap a tile to rotate it a quarter turn
• Route the glowing line from the data centre at the top to the dark buildings
• A building lights up the moment the line reaches it
• Light several buildings with one tap for a combo: points grow with the square of the combo
• Power every building in a district for a 500-point bonus and a fresh, bigger district
• When time is up, show your score card at the Lumen Grid stand

Combos and scoring

A single building is worth 100 points. Light two with one move and each is worth 200 (400 total); three at once pays 900. Plan a route that branches before you close it, then make the last turn count. Each cleared district adds 500 and brings in more buildings and more decoy tiles.

At the booth

Phones are the main way to play: scan the code at the stand, tap PLAY, and the game fits a portrait phone screen. After the round the score card stays on screen with the date and time, ready to show to the staff. The stand's big screen runs the same game in landscape: after 20 seconds idle on the title screen it switches to a self-playing demo with a PRESS ANY BUTTON TO PLAY banner, and on a screen without touch the score card loops back to the demo after 30 seconds. Every round ends the same way: the whole city lights up at once.

Controls

Touch

Tap a tile to rotate it; on-screen pause button

Mouse

Left click rotates a tile, right click rotates it back

Keyboard

Arrows or WASD move the cursor, Space, Enter or E rotate, Q, X or Backspace rotate back, Esc or P pause

Gamepad

Stick or D-pad move, A or RB rotate, B, X or LB rotate back, Start pauses; any button starts a round

Features

• One 60-second round, start to score
• Tap-to-rotate line puzzle on a 6 by 7 city grid
• Combo multipliers for lighting several buildings in one move
• District bonus of 500 and a bigger district every time you clear one
• Finale: the whole skyline switches on when time runs out
• Booth score card with buildings, best combo, districts and a time stamp
• Self-playing attract mode for the stand's big screen
• Portrait phone layout and a landscape big-screen layout
• Touch, mouse, keyboard and gamepad