✦ ROCKET LABBUILD / LAUNCH / EXPLORE
01 / ASSEMBLY BAY

Your rocket.
Your adventure.

Pick your parts. See how far you can go.

01 Capsule
02 Fuel tanks
03 Engine
04 Fuel blend

Balanced thrust and fuel use

05 Rocket stages
06 Mission
Launch mass 6.3 tFuel capacity 4.0 tThrust 180 kN

Mission: reach the edge of space at 100 km

READY ON THE PAD
MISSION 01Touch spaceReach 100 km altitude
Personal best: none yet
YOUR BUILDScout / Spark
PAD 01EARTH · SEA LEVEL
Drag to orbit · scroll to zoom
FLIGHT MANUAL
What’s new & next

Next stop: space

Choose your capsule, tank size, tank count and engine, then launch. Larger tanks carry more fuel and weigh more. Match XL and Mega tanks with stronger engines. Engine ratings use Standard fuel. Long-burn fuel uses 40% less fuel with 10% less thrust; High-energy fuel adds 50% thrust and uses 25% more fuel. Fusion gives 2.25× thrust and uses 1.3× fuel; Hyperfuel gives 3.5× thrust and uses 2.1× fuel. These are fictional arcade-game fuel blends. Three-stage rockets have two additional fueled stages. Keep your rocket pointed up to reach 100 km.

Challenge missions award points for speed, altitude, and landing precision. Personal bests are saved only on this browser. There is no online leaderboard. Space sprint uses simulation seconds; lunar missions run at normal speed.

For the Moon mission, reach 100 km and choose Moon approach. The arcade transfer places a fueled lander above the Moon. Use short thrust bursts to brake, stay upright, and touch down on the lit pad below 12 m/s. Lunar flight runs at normal speed.

Gravity keeps pulling you down. When fuel runs out, coast and enjoy the view. Rebuild any time to try a different rocket.
MISSION CONTROL

Fly together

Race the same rocket and mission. Create a room, then share its code with friends who can open this game.

or join a friend

Generated pilot names. No chat or personal details. Rooms expire after 1 hour. Scores are for casual play; there is no global leaderboard. The shared race clock keeps running if you pause.