Virtual worlds are three-dimensional, computer-generated worlds where team collaboration can be facilitated through the use of shared virtual space and mediated using avatars. In this study, we examined the effect of task complexity on team collaboration. We used a puzzle game in Second Life as the collaborative task and manipulated task component complexity by varying the number of pieces in the puzzle. We hypothesized that task complexity would influence team trust, team process satisfaction, and one‘s attraction to the team in virtual team collaboration. The experimental results indicate that task complexity has significant effects on team trust and team process satisfaction