1 - WHAT IS GRAFFITI?

In November 2018, we kept a  game-like app running for 4 days at a gaming expo, with no staff, no marketing material, no brand name or logo, no description or explanation, no title, and no instructions, except for one note, which read: "Please Solve This Puzzle".
Visitors would interact with the app and feed it their input, which would later be converted into another app, which you can play on this website.

2 - WHY MAKE GRAFFITI?

"Graffiti" is an attempt at deconstructing the definitions of what is a player, what is playing, and what is a game.
The people who interacted with the original app are not the players but part of the game's system (as if they were random number generators) - they could never be players, since their goals were not valid (the goal "solve this puzzle" is invalid because there was neither a puzzle or a final state / solution).

That said, Graffiti could be considered a game by even the most rigid definitions "game". 
For instance, we could validate "Graffiti" as a game through Chris Crawford's famous taxonomic definition of "game":

- It's entertaining (debatable);
- It's interactive (both the original app and the final app react to user input);
- It's goal-oriented (the main goal of the "Graffiti" was successfully tricking users into; thinking they were players, and collecting their input to create the final app) ;
- Achieving success required concrete actions against other subjects (bluffing, deceit, etc).