We are mainly using an open source game development platform GDevelop. One of it’s main strengths is on making quick prototypes and continue on to develop from there to full stand alone release. You can create your games to multiple different platforms with ease: Windows, MacOSX, Linux, Android and even on iOS. Also web server launchable HTML5 versions are possible.
GDevelop is fast growing and evolving environment that offers quick paced improvements straight from the developer as well as from an active game development community. It’s base working principle is to build an event-action chain for objects and if need arises to build something that the environment doesn’t yet support you can code it in using Javascript.
The secret of GDevelop lies in it’s ability to be learned quickly, with ease and you can start creating games and having results quite fast.