One key limitation with the contemporary online gaming research literature is that much of the published research has tended to examine only one genre of games (i.e., Massively Multiplayer Online Role Playing Games). Three relatively little studied online games are First Person Shooter (FPS) Games, Role Play Games (RPG) and Real Time Strategy (RTS) Games. Therefore, the current study aimed to examine player behaviour and characteristics in these three different online gaming genres. More specifically, the study examined the differences between the three different game genres in terms of: (i) the demographic profile, (ii) the social interactions of players including the number and quality of friends, and how gaming related to real life friendship, and (iii) motivations to play games. The sample comprised 353 self-selected players (156 who played FPS, 119 who played RPG and 78 who played RTS). The RPG genre had the highest percentage of female players. The number of hours played per week varied significantly between the genres. RPG players played significantly longer hours than FPS or RTS players. In relation to playing motivation, achievement levels were highest for the FPS genre with RPG genre having the lowest achievement levels RPG players had the highest immersion levels. RTS players were significantly less likely to report having made friends than players of the other two genres