Seriality is a central and multifaceted but largely neglected dimension of popular computer and video games. Seriality is a factor not only in explicitly marked game series (with their sequels, prequels, remakes, and other types of continuation), but also within games themselves (e.g. in their formal-structural constitution as an iterative series of levels, worlds, or missions). Serial forms of variation and repetition also appear in the transmedial relations between games and other media (e.g. expansive serializations of narrative worlds across the media of comics, film, television, and games, etc.). Moreover, specifically digital serialities challenge the temporal procedures and developmental logics of the analog era, e.g. because once successively appearing series installments are increasingly available for immediate, repeated, and non-linear forms of consumption. And while this media logic of the database (as Lev Manovich has termed it) can be seen to transform all serial media forms in our current age of digitization and media convergence, a careful study of the interplay between real-time interaction and serialization in digital games sheds light on the larger media-aesthetic questions of the transition to a digital media environment. As this collection bears out, digital games are not only symptoms and expressions of this transition, but also agents in the larger networks through which it has been navigated and negotiated; serial forms, which inherently track the processes of temporal and historical change as they unfold over time, have been central to this media-cultural undertaking.