head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Managing warmth as a health economy through scripted horror corridors.

Optimization · Practiced Mastery
The genre-defining 3D open-world crime game set in Liberty City.
Cryostasis leans Optimization (Practiced Mastery); Grand Theft Auto III leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Cryostasis
Sluggish deliberate combat needs timing, not twitch
Grand Theft Auto III
Driving and clunky gunplay set 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.
Cryostasis
Frozen horrors follow scripted patterns
Grand Theft Auto III
Enemies are scripted; nothing models the player
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Cryostasis
Scares and layouts are authored, unknown only once
Grand Theft Auto III
Pedestrian and traffic chaos lightly randomises encounters
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cryostasis
Heat management and flashback puzzles are the system
Grand Theft Auto III
Mission routing and city knowledge are learnable systems
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.