The main purpose of this research was to investigate the influence of assessing students’ achievements in the form of a group board game in comparison to their former achievements andtraditionaltests.Thefirstimportantfindingisastatisticallysignificantincreaseinstudents’ achievements in thegameincomparisonto theirformer achievements.This resultisconsistent with research onthepositiveimpactofcollaborativetesting,which showsthatstudents’ results obtained in collaborative taken exams are higher than in individual ones Some authors controvert, however, the ability of collaborative testing to improve content retention pointing out that only their performance during the collaborativeexamishigher.Oursecondresultsaddressedthisproblem.Wefoundthatstudentsfrom experimental groups gained higher results in the post-test taken 1 week after the game with respect to the results obtained by the control groups. In other words, the students assessed by the game obtained not only high performance in the game but also in a knowledge test taken after the game. This finding is encouraging with respect to other research that shows improvement in students’ achievement after the collaborative exam in the long run