head to head
Ninja Gaiden 3: Razor's Edge asks more than Half-Life 2, and the gap is execution.

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

Execution · Pure Mechanics
Course-corrected revision restoring difficulty to the trilogy's weakest entry.
Half-Life 2 leans Execution (Pure Mechanics); Ninja Gaiden 3: Razor's Edge leans Execution (Pure Mechanics).
Ninja Gaiden 3: Razor's Edge leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Ninja Gaiden 3: Razor's Edge
Steel-on-bone counters still demand sharp hands
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.
Ninja Gaiden 3: Razor's Edge
Scripted enemy 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.
Ninja Gaiden 3: Razor's Edge
Deterministic encounters
Ninja Gaiden 3: Razor's Edge leans clearly harder on optimization.
Half-Life 2
Linear progression with no builds.
Ninja Gaiden 3: Razor's Edge
Simplified systems leave less to solve
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.