head to head
Pavlov VR asks more than Half-Life 2, and the gap is reads.

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

Execution · Pure Mechanics
Tactical shooting where your real hands aim, reload, and out-duel adapting humans.
Half-Life 2 leans Execution (Pure Mechanics); Pavlov VR leans Execution (Pure Mechanics).
Pavlov VR leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Pavlov VR
Physical aim plus manual reloading in VR is a literal hands test
Pavlov VR leans clearly harder on reads.
Half-Life 2
Combine AI scripted, non-adaptive.
Pavlov VR
Human opponents fake, peek and adapt every round
Pavlov VR leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Pavlov VR
Spawn and gunfight chaos add modest noise
Pavlov VR leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Pavlov VR
Buy economy and site strategy mirror tactical-shooter planning
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.