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
An action roguelike about building boon synergies while dodging scripted encounters.

Execution · Practiced Mastery
Wave-based co-op horde shooter.
Hades leans Optimization (Practiced Mastery); Killing Floor 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Hades
Dash-attack timing and dodging drive moment-to-moment fights.
Killing Floor 2
Headshot-focused aim and weapon-switching
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hades
Enemies and bosses use scripted patterns, not adaptation.
Killing Floor 2
Scripted zeds, no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hades
Boon offers and room rewards randomise each run.
Killing Floor 2
Spawn waves and trader loot vary
Hades leans a little harder on optimization, though the gap is small.
Hades
Build synergies and weapon aspects are deep solvable theory.
Killing Floor 2
Perks, weapon synergies, money management
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.