head to head
vs
Risk of RainvsThe Binding of Isaac: Rebirth
Risk of Rain leans Optimization (Practiced Mastery); The Binding of Isaac: Rebirth leans Variance (Systems & Chaos).
Risk of RainThe Binding of Isaac: Rebirth
Axis by axis
Execution6 vs 5
Risk of Rain leans harder on execution: Dodging projectiles and platforming under scaling pressure.
Reads0 vs 0
Even - both lean on reads about the same.
Variance6 vs 7
The Binding of Isaac: Rebirth leans harder on variance: Item pools and room generation drive run identity.
Optimization7 vs 7
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.