Welcome to the OpenSesame documentation area! Here you can find everything you always wanted to know about your favorite free and cross-platform experiment builder. The latest stable version of OpenSesame is 2.9.1 Hesitant Heisenberg, released on November 13, 2014 (release notes).
To cite OpenSesame in your work, please use the following reference:
Mathôt, S., Schreij, D., & Theeuwes, J. (2012). OpenSesame: An open-source, graphical experiment builder for the social sciences. Behavior Research Methods, 44(2), 314-324. doi:10.3758/s13428-011-0168-7