head to head
Returnal asks more than The Binding of Isaac, and the gap is reads.

Execution · Twitch Chaos
Bullet-hell roguelike third-person shooter.

Execution · Twitch Chaos
Twin-stick roguelike where a crying child fights basement horrors with random unholy upgrades.
Returnal leans Execution (Twitch Chaos); The Binding of Isaac leans Execution (Twitch Chaos).
Returnal leans a little harder on execution, though the gap is small.
Returnal
Bullet-hell dodge and aim under pressure
The Binding of Isaac
Twin-stick dodging through bullet-dense rooms
Returnal leans clearly harder on reads.
Returnal
Bosses scripted, patterns not adaptive
The Binding of Isaac
Enemies follow fixed or random patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Returnal
Room layouts, parasites, items roguelike
The Binding of Isaac
Item and room RNG defines every run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Returnal
Build synergies and route planning
The Binding of Isaac
Item synergy knowledge converts luck into wins
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.