Duality Games
Two-player games in which each player sees a radically different world, and yet neither of them is wrong.
Two theories are dual when they look nothing alike and yet say precisely the same thing: every state, every observable and every prediction on one side has a counterpart on the other side, and no experiment can discriminate between these two world-views. Physics has real examples. The AdS/CFT correspondence relates a theory of gravity in a curved spacetime to a quantum field theory living on that spacetime’s boundary — a different number of dimensions, different objects, arguably a different space altogether.
Which leaves the question I keep returning to in my work: if each description accounts for everything there is to account for, which one tells us what the world is really like? Or is the question itself somehow confused? These games are that question, made playable.
What you need
Both games are played in the browser, and both need a second player playing on a second screen. It is crucial that you cannot see each other’s screens, as that is the whole point of these duality games: they may have a radically different experience than you think they would have. After the first game, you can (and should) talk and compare notes. This is when the mystery will reveal itself.