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

Optimization · Practiced Mastery
Twin-stick co-op shooter precursor.

Optimization · Practiced Mastery
Pixel-physics roguelite where every pixel is simulated and lethal.
Helldivers leans Optimization (Practiced Mastery); Noita leans Optimization (Practiced Mastery).
Noita leans a little harder on execution, though the gap is small.
Helldivers
Twin-stick aim and stratagem inputs
Noita
Real-time platforming and aim under physical chaos.
Helldivers leans a little harder on reads, though the gap is small.
Helldivers
Scripted enemies, no real reads
Noita
Scripted enemy AI.
Noita leans a little harder on variance, though the gap is small.
Helldivers
Random spawns and patrol pressure
Noita
Procedural world and wand drops dominate runs.
Noita leans a little harder on optimization, though the gap is small.
Helldivers
Loadout combos and stratagem chains
Noita
Wand crafting and pixel physics reward deep mastery.
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.