The time loop is the rare premise that gets better the more media it touches. A character relives the same day, the same battle, the same doomed hour, keeping only what they learned, until they, and not the physics, are finally ready to move on.
This is the whole genre, across every medium: the films that grew from Groundhog Day, the anime that made the loop a study in loneliness, the novels of endless rebirth, and the games that turn the reset button into the entire point. The loop is almost never really about time. It is about grief, growth, and the work of change.
The essential loops
Die, learn, repeat: the games
Groundhog Day and its heirs
Loops on the page
Anime's time loops
The action loop
Loops on TV
The timeline
- 1987Replay by Ken Grimwood defines the literary time loop: a man relives his adult life again and again.
- 1992Star Trek: TNG's 'Cause and Effect' traps the Enterprise in a causality loop, cementing the format on genre TV.
- 1993Groundhog Day arrives and becomes the template the entire genre is named after; the TV movie 12:01 lands the same year.
- 1998Run Lola Run turns the restart into breathless kinetic cinema across three sprints.
- 2000The Legend of Zelda: Majora's Mask makes the three-day loop a core game mechanic, resetting the world while keeping your progress.
- 2006The Girl Who Leapt Through Time (anime) and Higurashi bring the loop to the front of anime; Day Break sustains one across a full US TV season.
- 2007Timecrimes builds a tight, self-tightening Spanish loop that becomes a cult touchstone.
- 2011Steins;Gate and Source Code arrive within months, defining the loop's anime and sci-fi-thriller peaks.
- 2013Life After Life reinvents the literary loop as a 20th-century epic of endless rebirths.
- 2014Edge of Tomorrow and The First Fifteen Lives of Harry August push the loop to blockbuster and literary heights in the same year.
- 2016Re:Zero and Erased make 'return by death' and childhood do-overs central to a new anime wave.
- 2017Happy Death Day fuses the loop with the slasher and becomes a franchise; The Sexy Brutale reinvents the loop as a mansion mystery.
- 2019Outer Wilds and Russian Doll redefine what the loop can do in games and prestige TV in the same season.
- 2020Palm Springs makes the loop a hit romcom about commitment and shared despair.
- 2021Deathloop, Returnal and 12 Minutes turn the loop into a full-blown AAA and indie game genre.
- 2023In Stars and Time proves the loop RPG can be quietly devastating, closing the modern arc.
Meta loops: save, load, reset
The romantic loop
Spanish and world loops
The horror loop
The loopmakers
Keep exploring
Time Travel
Explore the Time Travel guide →Frequently asked
What is the difference between a time loop and time travel?
Time travel moves a character to a different point in time, usually once, and lets them act there. A time loop resets the same stretch of time over and over, with a character (and often only that character) retaining memory across each repetition. Groundhog Day is a loop; Back to the Future is time travel. Some stories blur the two, like Steins;Gate, which uses time travel to escape a de facto loop.
What is the first time-loop story?
The idea is old in science fiction. Heinlein's short stories 'By His Bootstraps' (1941) and '-All You Zombies-' (1959) are early causal loops. In film, the 1990 short 12:01 PM and the TV movie and short-story lineage predate Groundhog Day (1993), which popularized the modern one-day loop. Ken Grimwood's novel Replay (1987) is the landmark literary version.
Why are video games so good at time loops?
Games already run on death, restart and retry. A time loop just makes that structure the story, so the knowledge you keep across resets is literally the knowledge you, the player, have gained. Outer Wilds, Majora's Mask, Returnal and The Sexy Brutale turn the loop into a puzzle you solve with your own accumulated understanding, something no passive medium can replicate.
Which time-loop anime should I start with?
Steins;Gate is the most acclaimed and the best entry point. Erased is the most accessible thriller, Madoka Magica the most elegant tragedy, and Re:Zero the most intense. Higurashi and the infamous 'Endless Eight' arc are for viewers who want the loop pushed to its psychological extreme.
Is Edge of Tomorrow based on a book?
Yes. It adapts the Japanese light novel All You Need Is Kill (2004) by Hiroshi Sakurazaka, in which a soldier resets to the same morning of a losing alien war each time he dies. The film keeps the reset mechanic and the mentor figure while changing the ending and tone.
What time-loop story has the saddest or most emotional ending?
In Stars and Time, Madoka Magica and Russian Doll are frequent picks for the loop as a study of grief. Palm Springs and Groundhog Day end on hope earned through repetition, while Two Distant Strangers uses the loop for a devastating point about real-world injustice. The genre's best endings arrive when the character, not the physics, is finally ready to move on.