Cell Sprawl

Add organelles to grow, but every one burns energy — keep the ATP flowing or starve.

How to play

Build out a cell by adding organelles, each modelled on the real thing. Organelles both produce and consume ATP, so reckless growth drains your energy and the cell starves. Balance the books and keep it alive for three minutes.

• Add organelles to expand the cell's capabilities
• Each organelle changes your ATP income and upkeep
• Keep energy positive — over-expansion leads to starvation
• Survive the full three minutes to win the run

Game modes

• Daily run — the same starting cell for everyone today
• Practice — fresh runs to experiment

Controls

• Desktop: click and drag to build and place organelles
• Phone & tablet: tap and drag to add organelles

Tips & strategy

• Establish energy producers before piling on energy-hungry organelles
• Grow in small steps and watch the ATP balance settle before expanding again
• If energy dips, pause expansion and let production catch up

What you'll learn

Cell Sprawl is a biology survival game about organelles and ATP, where keeping a cell's energy balance alive teaches how cells run.

• Skills: cell biology, organelles, ATP and cellular energy, homeostasis
• Best for: roughly grades 7–12 (ages 12+)
• For parents & teachers: turns cell energetics into a survival challenge.

About Cell Sprawl

Cell Sprawl is a biology survival game about organelles, ATP and cellular energy balance. 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 →