The development of information and communication technologies brings new perspectives in education as well as in other fields. Instead of traditional methods, new methods that will attract the attention and interest of the students are used as alternatives. The effect of Educational Digital Games (EDGs), which is one of the new methods, on the achievement and motivation levels of the students was searched in this study. Experimental research model, which is one of the quantitative research methods, was used in the study. Quasi-experimental design with pretest-posttest control group was used as research design. The study was conducted with 62 students in 8th grade at a public school in Central Anatolia. There are an equal number of students in the experimental and control groups. Achievement test and motivation scale were used as data collection tools. In addition to traditional teaching, EDGs were used in the experimental group and only traditional teaching was applied in the control group during the 8 weeks teaching process. At the beginning of the teaching process pre-test was applied to study groups and at the end of teaching process post-test was applied. The data were analysed in a statistical program by using independent groups t-test and paired groups t-test analysis according to the research questions of the study. As a result of the study, it was found that EDGs were effective in increasing students' course achievement and motivation levels.