Progression is a short Twine game by Alex Kriss in which you progress deeper and deeper into a dungeon with your brother, seeking the treasures that lie within. The surprises along the way can kill you, and if you make it to the end, you discover that you'll have to die and restart anyway to progress.

The game is meant to be played multiple times and tracks various stats across playthroughs. Seeing certain things can open up new options and story branches for later playthroughs. It's a good thing the game is short, since you can't reach the true ending without going through the story several times, but even so it can get a little repetitive. Still, though, it's worth checking out. You can find it here.