Request you'll retain some of math of SimpleRockets V0.0
In the first (or second) release of SimpleRockets, I could place a wheeled rover (functional) via parachute on Uranus. Flight time: hours, course corrections tricky, but possible and extremely fun. Somehow this "end of the solar system" landing capability got lost in subsequent releases that concentrated on paint colors. If Jundroo has excellent, older code, hidden in a drawer somewhere, suggest you add it to the newest release you'all are planning. Thx.
I launch government spacecraft for a living. That a Jundroo game can accurately simulate future space launch activity puts you in entirely new leagues 1) public source (.99 cent downloads) and 2) potential contracts that define conventional dollar definition. Just a thought.