  Automated testing of computer games is a challenging problem, especially when
lengthy scenarios have to be tested. Automating such a scenario boils down to
finding the right sequence of interactions given an abstract description of the
scenario. Recent works have shown that an agent-based approach works well for
the purpose, e.g. due to agents' reactivity, hence enabling a test agent to
immediately react to game events and changing state. Many games nowadays are
multi-player. This opens up an interesting possibility to deploy multiple
cooperative test agents to test such a game, for example to speed up the
execution of multiple testing tasks. This paper offers a cooperative
multi-agent testing approach and a study of its performance based on a case
study on a 3D game called Lab Recruits.
