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.

Execution · Practiced Mastery
A metroidvania roguelite testing reflexes through randomized weapon kits.

Optimization · Practiced Mastery
An action roguelike about building boon synergies while dodging scripted encounters.
Dead Cells leans Execution (Practiced Mastery); Hades leans Optimization (Practiced Mastery).
Dead Cells leans a little harder on execution, though the gap is small.
Dead Cells
Tight platforming, parries, and dodge-rolls demand precise inputs.
Hades
Dash-attack timing and dodging drive moment-to-moment fights.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dead Cells
Enemy patterns are scripted; no adaptive modeling.
Hades
Enemies and bosses use scripted patterns, not adaptation.
Hades leans a little harder on variance, though the gap is small.
Dead Cells
Weapon drops and biome layouts randomized per run.
Hades
Boon offers and room rewards randomise each run.
Hades leans a little harder on optimization, though the gap is small.
Dead Cells
Build synergy and biome routing significantly improve runs.
Hades
Build synergies and weapon aspects are deep solvable theory.
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.