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SimpleSci game

Launch to Space.

Use what you learned about thrust, weight, fuel, and staging to deliver a satellite to space.

Remember: thrust must beat weight to climb. Empty stages are dead weight, so rockets drop them.

Earn more upgrades in the 10-question quiz →

Launch with what you learned

Fuel and oxidizer make hot gas. Exhaust leaves through the nozzle, producing thrust. Drop an empty stage to reduce the mass you carry.

Boost reserve45%Ready
Rocket condition100%

Dodge for 20 seconds. Every hit damages the rocket.

Mission1 · Launch
Altitude0 km
Speed0 km/s
Fuel100%
Stage1
PHASE 1 · Build enough thrust to lift off
Stage 1 Fuel100%
More thrust uses fuel faster.
0 km25 km50 km100 km · SPACE SATELLITE TARGET
Thrust98
Weight100
Raise thrust until it is greater than weight.

You can also use the ← and → arrow keys. Coast and use small steering thrusters to dodge.