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 · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.

Execution · Pure Mechanics
Faster, harder Wolfenstein blending pulp story with brutal shootouts.
Half-Life 2 leans Execution (Pure Mechanics); Wolfenstein II: The New Colossus leans Execution (Pure Mechanics).
Wolfenstein II: The New Colossus leans a little harder on execution, though the gap is small.
Half-Life 2
Gravity gun and shooting demand precision.
Wolfenstein II: The New Colossus
Aggressive dual-wield combat punishes sloppy aim.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Combine AI scripted, non-adaptive.
Wolfenstein II: The New Colossus
Enemies scripted in arena waves.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Almost no randomness.
Wolfenstein II: The New Colossus
Minimal randomness.
Wolfenstein II: The New Colossus leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Wolfenstein II: The New Colossus
Weapon upgrades and contraptions modest.
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.