All parts authorized. No telemetry recorded. Recovery scrap waived.
Per Directive 5000.4 §B: failure to log results constitutes failure to fail.
Click a part on the left, then click on the rocket grid to place it. Stack parts vertically. You need at least one engine, one fuel tank, and one body.
The hangar has three save slots: A / B / C. Switch between them with the tabs above the rocket name. Each slot is autosaved as you edit so you can keep your moonshot build untouched while experimenting in another slot.
Hold Space or THRUST to burn fuel. Tap ←/→ to steer. Don't oversteer or you'll spin out.
Tumbling is what ends most flights. Tip too far and your hull burns fast. Watch for the attitude bar and the big STEER ←/→ prompt — hold that direction and you'll be upright in about a second. Ignore it and you won't survive long.
Once your tanks run dry your apogee is locked in and the fall can take a while. Hit RECOVER (or Esc) to end the flight and collect your results immediately. Staying up still earns pickups and pilot combo, so it's your call.
Deep missions take a long time. Press T (or the TIME button) to run the flight at ×2, ×4 or ×8. The simulation is unchanged — you just spend less of your own time on it. It drops back to real time automatically whenever something needs you: an engine sputtering, a tumble, or the ground getting close.
Build stages by stacking engine → fuel → engine → fuel in the hangar: an engine placed on top of a fuel tank starts the next stage up. Press S or the STAGE button to drop the spent bottom stage for a kick — the engine above keeps firing. Shed dead weight once a stage burns dry, but drop too early and you waste fuel. Watch the STAGES ladder on the left — the active stage drains green→empty; drop it right as it empties for a CLEAN SEPARATION scrap bonus.
Tilt to dodge birds, debris, and lightning. Each near-miss adds to your PILOT combo — a scrap multiplier that resets when you take a hit.
Each launch rolls a weather condition. METEOR SHOWER, AURORA, and THUNDERSTORM pay more scrap but raise the risk. TAILWIND is safer but pays less.
Floating items spawn ahead of the rocket: scrap cubes (+50), fuel cans (+20% fuel), repair kits (+30 hull), data crystals (+3 data), and rare gold stars (+200). They drift toward you within range — steer to grab them.
Every flight pays two currencies. SCRAP comes from altitude, milestones, pilot combo, staging and pickups. DATA comes from altitude and data crystals. They are spent in different places, and you can see both in the top bar of the hangar and the R&D LAB.
Spend SCRAP on permanent upgrades (lighter frames, more thrust, tougher hull, better pickup magnet). Each has three levels and applies to every future launch. Buy the cheap ones early — the first costs about three flights' worth of scrap.
Scroll down in the R&D LAB to buy SUPPLIES with DATA: BOOST (5 DT, +50 m/s), REPAIR (8 DT, +50 hull) and SHIELD (12 DT, 5s immunity). Each purchase is one charge — it is consumed when used and must be re-bought. Your stock shows on the three buttons beside STAGE in flight; trigger them with 1, 2 and 3. If a button reads 0 you have none in stock, so fly higher to earn data and restock before launch.
Reach 1,000,000 ft to touch the moon. Crashes earn scrap from altitude, milestones, and pilot combo. Higher altitudes unlock better parts.
The moon isn't the end. Past it lie DEEP SPACE (5,000,000 ft) and INTERPLANETARY (10,000,000 ft), both with big milestone payouts. They need a tall, well-staged stack and a full R&D lab — the mission objective on the title screen retargets as you clear each one.
Some parts are unreliable — higher JANK means a higher chance an engine lets go mid-burn. You get a warning first: the engine SPUTTERS for about a second and a half, coughing smoke and losing thrust, before it fails for good.
That warning is your chance to act. Release the throttle for about a second and the over-stressed engine recovers — you trade a little speed for the engine. Alternatively, if the failing engine is in your bottom stage, stage it away. Ride the throttle through the sputter and you lose it.