LIONESS Lab is a joint project of the University of  Nottingham, the University of Passau and the Max Planck Institute for Human Development Berlin. In 2015, Lucas Molleman and Marcus Giamattei started working on this joint project together with Prof. Simon Gächter and Prof. Johann Graf Lambsdorff as their advisors.

LIONESS Lab enables researchers to conduct interactive experiments online. It speeds up the life cycle of an experiment and facilitates replication. The platform builds on the Passau-based classEx project for experimentation in the classroom.