This research are develop the project-based learning model using gamification which can be used as a guideline to develop the project-based learning system using gamification to enhance 21st century learners through the six steps of project-based learning process and instruction activities using gamification; thereby, users can interact and exchange knowledge with one another through the social network, encouraging them to have creative thinking skills, which is needed for 21st century learners. The objectives of this research are (1) to study and synthesise the conceptual framework of the project-based learning model using gamification to enhance 21st century learners, (2) to develop the project-based learning model using gamification to enhance 21st century learners, and (3) to study the results after using the project-based learning model using gamification to enhance 21st century learners. The participants in this research include seven experts from various institutions, all of whom are specialised in design and development of instruction models and instruction systems. The research tools consist of (1) the project-based learning model using gamification to enhance 21st century learners, and (2) the evaluation form on the suitability of the project-based learning model using gamification to enhance 21st century learners. According to the results, which are in line with the expectation of the researchers, it is found that (1) the overall suitability of the development of the project-based learning model using gamification to enhance 21st century learners (overall elements) is at a very high level, and (2) the overall suitability of the development of the project-based learning model using gamification to enhance 21st century learners is at a very high level.