18 Months on from its early access release the game is still being developed with features being added regularly. In Particular internet rocket scientists who want to clone real world designs find the procedural design mechanic - including simulation of rocket engines - a superior alternative to other games. It also includes a visual automation system called 'Vizzy' that lets designers code write software to fly their rockets instead of trusting their pilot skills. It also supports iPads and other tablets (in theory it supports phones, but the UI is hard to use at these scales).

So, there's a lot to recommend it, but having said that it still lacks a lot when compared to Kerbal Space Program or Orbiter 2016, but there's an audience out there who want to build their own rockets and get turned off by little green men, and this might be perfect for them.