ADVENTURE Autogl: a handy graphics and GUI library for researchers and developers of numerical simulations. ADVENTURE AutoGL (pronounced as ‘O-te-ga-lu’) is a graphics and GUI library, dedicated for simulation-based research and development. It is designed for the simulation users to develop their own data viewers and editors. Currently, the library is used among many researchers and simulation users, mainly in universities and national research centers. Its functionalities and supported platforms are explained. AutoGL applications of various kinds of simulation methods are demonstrated also.