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
The genre-defining 3D open-world crime game set in Liberty City.

Optimization · Practiced Mastery
A rare PS2 survival horror about a girl trapped in a cruel storybook world ruled by sinister children.
Grand Theft Auto III leans Optimization (Practiced Mastery); Rule of Rose leans Optimization (Practiced Mastery).
Grand Theft Auto III leans a little harder on execution, though the gap is small.
Grand Theft Auto III
Driving and clunky gunplay set a modest physical bar
Rule of Rose
Clunky combat poses a modest physical bar
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto III
Enemies are scripted; nothing models the player
Rule of Rose
Enemies are scripted, never adaptive
Rule of Rose leans a little harder on variance, though the gap is small.
Grand Theft Auto III
Pedestrian and traffic chaos lightly randomises encounters
Rule of Rose
Obscure item hunts and cryptic events until mapped
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto III
Mission routing and city knowledge are learnable systems
Rule of Rose
Routes and puzzle solutions converge fully on replay
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.