head to head
Krunker 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
A fast, low-fi browser FPS built around twitch aim and movement skill.
Half-Life 2 leans Execution (Pure Mechanics); Krunker leans Execution (Pure Mechanics).
Krunker leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Krunker
fast twitch aim and movement in browser FPS
Krunker leans clearly harder on reads.
Half-Life 2
Combine AI scripted, non-adaptive.
Krunker
reading human opponents' positioning and peeks
Krunker leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Krunker
minor spawn and loadout randomness
Krunker leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Krunker
class loadouts and map knowledge are learnable
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.