head to head
Cobra Triangle asks more than Half-Life 2, and the gap is execution.

Execution · Pure Mechanics
Unforgiving boat-handling execution across 25 memorisable scripted trials.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.
Cobra Triangle leans Execution (Pure Mechanics); Half-Life 2 leans Execution (Pure Mechanics).
Cobra Triangle leans clearly harder on execution.
Cobra Triangle
Boat handling on auto-scrolling water punishes every slip
Half-Life 2
Gravity gun and shooting demand precision.
Half-Life 2 leans a little harder on reads, though the gap is small.
Cobra Triangle
Hazards and enemies follow fixed Rare-designed scripts
Half-Life 2
Combine AI scripted, non-adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Cobra Triangle
Courses are identical on every attempt
Half-Life 2
Almost no randomness.
Cobra Triangle leans a little harder on optimization, though the gap is small.
Cobra Triangle
Power-up routing and objective knowledge smooth the gauntlet
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.