I have game development experience with a wide variety of game engines and lower-layer graphics libraries.
My favorite go-to game engine is Unity3D, using C# as the development language. It provides cross-platform support for iOS, Android, Windows, MacOS as well as consoles.
I developed other game prototypes in other technologies such as;
Javascript/Canvas, Python/PyGame, Java/LibGDX, Ogre3D, 3DGameStudio, Adobe Flash