head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

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

Execution · Practiced Mastery
Lara's reboot blending cover shooting, climbing, and survival cinema.
Half-Life 2 leans Execution (Pure Mechanics); Tomb Raider (2013) leans Execution (Practiced Mastery).
Half-Life 2 leans a little harder on execution, though the gap is small.
Half-Life 2
Gravity gun and shooting demand precision.
Tomb Raider (2013)
Bow aim, QTEs, and platforming timing matter.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Combine AI scripted, non-adaptive.
Tomb Raider (2013)
Scripted enemy waves, 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.
Tomb Raider (2013)
Minimal randomness in encounters.
Tomb Raider (2013) leans a little harder on optimization, though the gap is small.
Half-Life 2
Linear progression with no builds.
Tomb Raider (2013)
Weapon upgrades and skill picks straightforward.
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.