Building comparison
head to head
Grand Theft Auto IVvsHalf-Life 2
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Grand Theft Auto IV
Execution · Practiced Mastery
A grittier crime story where weighty driving and gunplay carry the experience.
Half-Life 2
Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.
Grand Theft Auto IV leans Execution (Practiced Mastery); Half-Life 2 leans Execution (Pure Mechanics).
Grand Theft Auto IVHalf-Life 2
Axis by axis
Execution5 vs 6
Half-Life 2 leans a little harder on execution, though the gap is small.
Grand Theft Auto IV
Heavier driving and cover shooting reward control.
Half-Life 2
Gravity gun and shooting demand precision.
Reads1 vs 1
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto IV
Scripted AI, no adaptive opponent modeling.
Half-Life 2
Combine AI scripted, non-adaptive.
Variance2 vs 1
Grand Theft Auto IV leans a little harder on variance, though the gap is small.
Grand Theft Auto IV
Minor mission variance.
Half-Life 2
Almost no randomness.
Optimization3 vs 3
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto IV
Mission routing and weapon picks learnable.
Half-Life 2
Linear progression with no builds.
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.