This research study explores the influence of perceived fairness on players' playstyle in multiplayer card games. The study focuses on a card game called "Insomnia" and its modified versions to investigate players' perceptions of fairness and their subsequent behavior. Two series of playtests were conducted with different groups of participants, and data were collected through gameplay observations and semi-structured group interviews. Thematic analysis was performed on the collected data, comparing findings with existing literature to provide insights into fairness in card games and the consequent playstyles. The results reveal that players adapt their strategies and playstyles when the game becomes difficult and unfair, shifting towards cooperative actions and helping others. Furthermore, the study shows that their goals, motivations, and perceived fairness influence players' preferences and behaviors. The findings underscore the interplay between fairness, playstyle archetypes, and player behavior in multiplayer card games. The study emphasizes the significance of understanding individual motivations, social dynamics, and game design elements in shaping player experiences. It suggests that game designers should consider the complexity of player decision-making and the intricate relationship between motivations and perceptions of fairness to foster engaging gameplay.