head to head
The Binding of Isaac asks more than Enter the Gungeon, and the gap is variance.

Execution · Practiced Mastery
A bullet-hell roguelike where dodging fixed patterns is the core skill.

Execution · Twitch Chaos
Twin-stick roguelike where a crying child fights basement horrors with random unholy upgrades.
Enter the Gungeon leans Execution (Practiced Mastery); The Binding of Isaac leans Execution (Twitch Chaos).
Enter the Gungeon leans a little harder on execution, though the gap is small.
Enter the Gungeon
Bullet-hell dodge-rolling and precise aim define survival.
The Binding of Isaac
Twin-stick dodging through bullet-dense rooms
Enter the Gungeon leans a little harder on reads, though the gap is small.
Enter the Gungeon
Bosses use fixed bullet patterns; no adaptation.
The Binding of Isaac
Enemies follow fixed or random patterns
The Binding of Isaac leans clearly harder on variance.
Enter the Gungeon
Gun and item drops heavily randomized.
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.
Enter the Gungeon
Synergy hunting and shop routing shape strong runs.
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.