The first time I stumbled upon Agario, it was late at night, a byproduct of an aimless click-through on a forum. The concept, as advertised by the simple, unassuming URL, was almost childish in its straightforwardness: "one circle eats other circles." Little did I know that this seemingly basic premise would unravel into an experience of surprising depth, a masterclass in risk-reward, and a...