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.

Execution · Practiced Mastery
An open-world cop action game mixing driving, gunplay, and martial arts across a mapped Los Angeles.
Grand Theft Auto III leans Optimization (Practiced Mastery); True Crime: Streets of LA leans Execution (Practiced Mastery).
True Crime: Streets of LA leans a little harder on execution, though the gap is small.
Grand Theft Auto III
Driving and clunky gunplay set a modest physical bar
True Crime: Streets of LA
Driving, shooting, and brawling reflexes
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
True Crime: Streets of LA
AI cops and crooks are scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto III
Pedestrian and traffic chaos lightly randomises encounters
True Crime: Streets of LA
Random street crimes pop up
Grand Theft Auto III leans a little harder on optimization, though the gap is small.
Grand Theft Auto III
Mission routing and city knowledge are learnable systems
True Crime: Streets of LA
Branching missions and upgrade routes learnable
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.