head to head
Star Wars Trilogy Arcade 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 rail shooter about fast aiming through scripted Star Wars set-pieces.
Half-Life 2 leans Execution (Pure Mechanics); Star Wars Trilogy Arcade leans Execution (Pure Mechanics).
Star Wars Trilogy Arcade leans clearly harder on execution.
Half-Life 2
Gravity gun and shooting demand precision.
Star Wars Trilogy Arcade
Fast aiming and reflexes on rails define scoring
Half-Life 2 leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
Star Wars Trilogy Arcade
Enemies appear on fixed scripts, no adaptation
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.
Star Wars Trilogy Arcade
Deterministic enemy waves once learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Linear progression with no builds.
Star Wars Trilogy Arcade
Memorizing wave patterns improves performance modestly
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.