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