What counts
Four themes, four signals
A title is in our catalogue when its premise, or a significant and recurring part of the plot, involves at least one of these themes. A throwaway gag or a one-scene dream is not enough. A title can carry several themes.
Time travel
A person, object or information physically or mentally moves to another point in time (machines, portals, magic, time slips, sending messages or consciousness to the past/future).
7 titles on the site →Time loops
A character relives the same stretch of time repeatedly (Groundhog Day structure).
2 titles on the site →Parallel universes
Other universes, dimensions or worlds that coexist with ours and can be reached, observed or interact with ours (multiverse, mirror worlds, doppelgängers from other realities).
5 titles on the site →Alternate timelines
History diverged at some point and the story is set in, or moves between, the resulting timelines (alternate history, branching or changed timelines, "what if" realities).
2 titles on the site →