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 linear horror chase game tested by nerve management and environmental navigation under scripted creature pressure.
Grand Theft Auto III leans Optimization (Practiced Mastery); Still Wakes the Deep 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
Still Wakes the Deep
Narrow corridor sprints and climbing sections under creature pressure
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
Still Wakes the Deep
No adaptive opponent; creature follows scripted trigger events
Still Wakes the Deep leans a little harder on variance, though the gap is small.
Grand Theft Auto III
Pedestrian and traffic chaos lightly randomises encounters
Still Wakes the Deep
Creature patrol windows and some object locations are unknown first run
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
Still Wakes the Deep
Safe-path knowledge and object-use sequences are memorisable
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.