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 grim 2D action metroidvania steeped in religious horror.

Execution · Practiced Mastery
A retro Sonic revival celebrating classic-era momentum design.
Blasphemous leans Execution (Practiced Mastery); Sonic Mania leans Execution (Practiced Mastery).
Sonic Mania leans a little harder on execution, though the gap is small.
Blasphemous
Punishing 2D combat and platforming
Sonic Mania
High-speed reaction platforming
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Blasphemous
Scripted bosses
Sonic Mania
No human opponent
Sonic Mania leans a little harder on variance, though the gap is small.
Blasphemous
Static world
Sonic Mania
Mostly deterministic with hidden routes
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Blasphemous
Rosary bead builds and routing
Sonic Mania
Route knowledge dominates speedruns
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.