Note: I beta-tested this game.
PROSPER.0 is a dystopian Twine game with a very interesting gameplay mechanic. As an employee of CORPOTECH, you are tasked to verify the content of documentations, and to delete any file not including factoid (strangely resembling contemporary poetry). Do your task correctly and you are rewarded (by keeping your job), but do too many mistakes and find yourself on the CORPOTECH blacklist.
If you are lucky enough to go through more than one day of work (really, you only don't if you troll the game), and your screen may get visited by a stranger, who, unlike management, would prefer not to see all those poetic files lost forever. Though you cannot go against your overlords, lest you lose your job, the stranger proposes a different way of keeping these files alive: you reconstruct them... in your own way.
Until one day... You have to make a choice. A choice that could change everything... or nothing at all. But only you can make it.
And here it is, the interesting gameplay, word play, in a different way. As the words are one by one disappearing from the screen, you have the option to "save" them from destruction, leaving you the opportunity to use them afterward to create another poem yourself. You are even given challenges, like only be allowed to save or use a certain amount of words.
And there is no right or wrong way of making those poems, because they are made by you, a singular individual with your own set of words and endless possibilities. It is pretty poetic (eh) and I don't think I ever experienced this kind of interactivity in IF (so far).
Also, it made me thing of those word magnets you can get for your fridge, and create whatever sentences to display to the world. Except, only you ever see it. It's pretty cool. I've been messing around with the other game modes, because it's less stressful than during the game, and made some weird nonsensical poems, just for fun!
All I will say is Down with CORPOTECH!