head to head
Sine Mora 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
A horizontal shoot-em-up built around time manipulation and bullet-hell dodging.
Half-Life 2 leans Execution (Pure Mechanics); Sine Mora leans Execution (Pure Mechanics).
Sine Mora leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Sine Mora
precise bullet-hell dodging is the whole test
Half-Life 2 leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
Sine Mora
scripted enemy patterns, not adaptive
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.
Sine Mora
minimal randomness in patterns
Sine Mora leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Sine Mora
time-manipulation and route memorization
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.