Build it, blow it up, and build it again

Perihelion lets you run your own rocket engine shop from the ground up. Take over an abandoned desert airfield and design realistic, unique engines. Test them (until you fly too close to the sun) while racing companies to land contracts from in-game aerospace companies. Or, you could just export it straight into your favorite space game and see it fly for yourself.

Have your shop do what it does best

Build ridiculous multi-meganewton heavy-lift engines, or weedy engines made just for small-sat launchers. There’s no definitive answer, only what works. Size your own chambers, define your own nozzle cooling methods, pick a propellant combination, assemble turbopumps, optimize for a specific altitude, and more. With the advanced Engine Solver running in the background, developing engines grounded in reality is the standard.

Compete to be the best

Coming next year as a part of the 0.8 release, be the best in the business and compete for lucrative, varied contracts in Career Mode. You decide what to do to win!

Export your engines to other games

Space games can feel limiting when the engine choices are predetermined, not appealing, or sub-optimal for the rocket you are looking to build. Perihelion's Engine Export feature, along with a standalone companion mod for each supported game, lets you be as creative as you like while also helping you design engines that are optimal for your vehicle.

Day one of Early Access, which is planned to release by the end of the summer, will feature rudimentary Engine Export for Kitten Space Agency*