Based on type profiles and various interactions with INTPs, there is an underlying motivation of the INTP to engage in games. For some this can translate into interpersonal games as easily as video games. The logic of strategy can hold interest for the INTP, so that can be their interface socially.
Conflict avoidance is typically another INTP trait based on descriptions and specific individuals that come to mind. These traits apply differently in various INTP contexts. I suspect that the more socially conflict oriented INTPs are so internally detached that it doesn't feel like conflict in the same way it does to others. It's still a game to them, but can appear like aggression externally.