Euler's Game
Euler's Game is a time-traveling puzzle that takes you on a journey through the ages, from ancient Babylon to the present day.
Using only a pen and paper, solve mathematical problems set by the great mathematicians of the past, and unlock the secrets of the universe.
But beware, for the game is not for the faint of heart. The puzzles are tough, the stakes are high, and the consequences of failure are dire.
Rules of Engines Time Traveler's Guide