Although there are several development processes for creating entertainment games, serious games, and gamified solutions, there is a need for a new consolidated process capable of developing different types of computer games and digital gamified solutions. This study covers the topic of computer games and gamified solutions design and development processes. First, processes of computer entertainment game production are introduced and investigated. Second, the paper describes gamification and serious game development processes. Finally, this study presents a new process called (DG)2DP to develop entertainment and serious computer games as well as digital gamified solutions. Two methods have been employed to evaluate the proposed game development method. First, the proposed process is assessed by 42 game development practitioners through an 8-factors questionnaire. Second, 16 experts that have applied the process are requested to rate the extent to which they would recommend the (DG)2DP to other game developers. The evaluation results show a 28.39% higher score for (DG)²DP than other processes. Furthermore, in comparison with other development processes, 81.25% of respondents agreed and strongly agreed to recommend the (DG)2DP to other game developers.
