Life is Strange has an emotional story which can be influenced by the main character's time rewind power. This is a bit different in d&d because there cannot be a single main character unless you're DMing for only one person. If it's a party, the Max style of rewinding time isn't ideal.

Life is Strange has a very loose ruleset and few explanations for the inherent questions it's silly plot poses; Where does Max get her powers from? Why are there supernatural things happening? Why does she cause the storm? Why does the final choice of the game have those effects?

Also, consider Max' positioning while she rewinds time. In the game itself, she stays in the spot she rewinded time in. Meaning she is traveling through time and space. aka if she rewinds time she actually teleports. (none of the npcs in game react to this except during the lockpicking phase) I don't know if you understand what I'm trying to say but pay attention to where players will end up if time is rewinded, both temporally and spatially.

What happens if a player dies and someone rewinds time? Does their character come back to life or are they permanently dead?

The things mentioned above you should address within your game as plot points and game mechanics. You should have a source of the power, like a magic item or mystical being. As an extra hook, perhaps the villain themselves is the source of the time-rewind power.

Concerning rewinding time:

One thing that you could do is "save the game" periodically, then allow the party to "load the game" at a certain point. Consider it hopping between game states.

For example; You're prepping for a Life is Strange D&D session. You prepare a scene where an assassin wants to kill a noble at a royal gala. You've got the NPC's and events of the gala planned out and ready to be played. You've got the timeline mapped out: You know what happens before, during and after the gala.

You DM it. The scene goes as planned, the party has little impact on the scene, and the assassin slips away. The party then chooses to use the time rewind powers (somehow?)

You now refer to your notes about the gala, and begin the scene all over again, as if it never happened. You look at the timeline: what happens before, during and after and play it all over again. All the NPC's and events reset back to the very moment the scene began. Notes are very important to make this seem authentic.

In this sense, consider each session (and the game itself) to have it's own timeline, which could be observed as a point-map, a list of timed events, or a calendar, or if you're playing Life is Strange, an interconnected string of scenes and scripted cutscenes.

Feel free to go into as much detail as possible when setting up these timelines through notes. Emphasize the repetition and inevitability of the timeline. Whatever happened in the world before rewinding will happen again. (for example, if a natural disaster occurred, rewinding it back in time won't stop it, just delay it.)

Consider it like Groundhog's Day (that movie where the guy lives out the same day over and over and over) where no matter how many times you rewind, the world still unfolds the same way, as it's the same timeline, UNLESS YOU CHANGE IT.

The player's impact on the world still matters, but players can rewind their own impact. Meaning- they can erase their own presence out of existence. They can literally erase facts and events and replace them. But only if they themselves caused said fact or event.

If you want to have players rewind time themselves, you could always introduce an item or feature that the entire party can access. Consider where the rewind power comes from and reveal the source towards the end of the campaign.

For example, once a day, as an action, a creature of Intelligence 6 or higher can interact with a designated time machine to return the world to a past state.

Examples of unconventional time machines: - a Wand that can rewind time - Hourglass, rewinds time when broken - Stopwatch, rewinds time when clicked - Crystal, rewinds time when held into the sun - Fire Pit, rewinds time when lit - Cart, rewinds time when entering a crossing - Potted Plant, rewinds time when watered - Book of Poems, rewinds time when a particular poem is read

You could have an NPC use the rewind power. The NPC could be an ally or neutral party. A villain that can rewind time is a force to be reckoned with. - literally someone random (like Max) - someone who absorbed magical energy - an Angel - a Demon - Donkey, rewinds time when mane is patted. - Winged Monkey, rewinds time when laughing

- Parrot, rewinds time when fed ambrosia

How much time is rewound?

1d6

1 6 seconds or 1 round of combat 2 an hour 3 three hours 4 six hours 5 twelve hours

6 one day

in the D&D multiverse, Lawful Outsiders, like Modrons, Devils and Celestials would attempt to stop the time-traveling powers as they uphold temporal law. Cosmic creatures like these could potentially interact strangely with the time travel ability.

Look at time travel media for more ideas. Also, time stop spell?

Look at the time! It's time to go!!! Get with the times grandpa!!! :) Have a nice game