head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Optimization · Practiced Mastery
Pixel-physics roguelite where every pixel is simulated and lethal.

Execution · Twitch Chaos
Dodging bullets while leveraging encyclopedic item knowledge against heavy run RNG.
Noita leans Optimization (Practiced Mastery); The Binding of Isaac: Repentance leans Execution (Twitch Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Noita
Real-time platforming and aim under physical chaos.
The Binding of Isaac: Repentance
Dodging dense bullet patterns while aiming is constant pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Noita
Scripted enemy AI.
The Binding of Isaac: Repentance
Enemies are random or scripted, never modelling you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Noita
Procedural world and wand drops dominate runs.
The Binding of Isaac: Repentance
Item pools and room rolls reshape every run
Noita leans a little harder on optimization, though the gap is small.
Noita
Wand crafting and pixel physics reward deep mastery.
The Binding of Isaac: Repentance
Knowing hundreds of item synergies converts RNG 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.