July 21st

As per the rules of the jam, you can only have one choice per playthrough. However, looping back to the title screen or creating a fake title screen is one accepted way (confirmed by the organizer) to work around this limit.

July 21st puts an interesting spin on the idea. You play as a character with time travelling powers. Each time the playthough ends, you return to the title screen, but you can use your time travel powers (woven into the new game plus option) to go back and try to do things differently. To see all the content and endings, you will need to activate new game plus again, repeating history once more, just a little differently, until you find that sweet spot where you change the course of history.

The idea is solid, and the story and writing is fairly good too. The art is simple, but works. That said, each playthrough is a linear kinetic VN experience, so it's not really using up that one choice limit, unless you count the title screen as a choice.

It's a straightforward but solid read with an interesting idea behind it.