Grid Lock
Just a number pair and an empty grid — can you pinpoint the coordinate by eye?
How to play
Each round gives you a latitude and longitude. Read the blank grid, drop your pin where you think the point lands, and lock it in. Accuracy across several rounds builds your score.
- Click the grid to place your pin at the target coordinate
- Lock the pin to score that round on how close you landed
- Optional hints (such as the hemisphere) cost points if bought
- Play through a set of rounds for a final total
Controls
- Desktop: click the grid to place the pin, then click Lock pin
- Phone & tablet: tap to place the pin and tap Lock
Tips & strategy
- Anchor yourself on the equator (0°) and prime meridian, then count outward
- Remember positive latitude is north and positive longitude is east
- Save hints for the rounds where you're genuinely lost — they eat your score
What you'll learn
Grid Lock is a latitude-and-longitude precision game on a faint, label-free grid, building coordinate skills on a global map.
- Skills: latitude and longitude, coordinates, map grid, precision
- Best for: roughly grades 5–10 (ages 10–16)
- For parents & teachers: makes the global coordinate grid concrete.
About Grid Lock
Grid Lock is a latitude-and-longitude precision game on a faint, label-free map grid. It's an original, free browser game built in-house for PlayPendium.
A free, original browser game on PlayPendium — no download, no install. Browse all games →
