What is "simpleplanes"

SimplePlanes is a simulation video game developed and published by Jundroo LLC. SimplePlanes followed the release of SimplePhysics and SimpleRockets. The game was first released on Mac OS X and Microsoft Windows and was ported to iOS and Android later. It was released onto Steam on 17 December 2015 after going through the Steam Greenlight process. The game gives the player the ability to build planes and finish challenges. The game was well received by critics, with the main downfalls mentioned the most being the "slippery controls" and the graphical design.