Vietnam these days is facing some major problems, such as a rapidly growing population which increase the pressure on the environment. Furthermore, fast urbanization which leads to concerns about urban planning and sufficient infrastructure. While the perception amongst the Vietnamese population prevails that the government is solely in charge in combating these problems, the population should take their own roles and responsibilities and perform pro-environmental behaviour to partly overcome the environmental degradation. This thesis addresses this problem by the means of introducing a serious game which addressed water-related issues. This game is tested, via a pre and post Likert scale based survey, in a local community in Vietnam. The game and surveys are based on the Theory of Planned Behaviour (Ajzen, 1991) which assumes that behaviour is related to multiple beliefs about one’s own capacity, the socials norms and the expected outcome of a certain behaviour. The survey answers are analysed via statistical methods and these results show a significant different in answers to the pre and post surveys. This pilot study had a sample size of 120, therefore a confidence level of 80% was set indicating that no hard conclusion can be made but that an interesting research topic is founded.