Dan and Phil x Harry Potter x Life is Strange Crossover
A Concept: You play as Daniel Howell, a young half-blood wizard who mysteriously receives time-rewinding powers at the beginning of his first year at Hogwarts. He realizes his powers do not adhere to the same spatiotemporal constraints as time turners: they do not obey the Novikov Self-Consistency Principle, and can only rewind up to five minutes at a time. Unbeknownst to Dan, his powers are finite - the rate of depletion is available only to you, the player, in a meter on the right of the screen. For the first half of his time at Hogwarts, you use Dan’s powers to remake decisions to make life easier for him and his Muggle-born best friend Phil. Then, in his fourth year, Harry Freakin’ Potter returns from the maze with a dead body and life for Dan gets really dark really quickly. You realize too late you should probably have conserved your powers for the war.
There are four fixed events in the game: Befriending Phil, Cedric’s death, Dumbledore’s death, and Dan’s powers running out sometime during the Battle of Hogwarts.