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

Execution · Pure Mechanics
VR Half-Life where hand-presence interaction defines every fight.

Execution · Pure Mechanics
A light-gun rail shooter testing target-snapping speed against memorised spawns.
Half-Life: Alyx leans Execution (Pure Mechanics); Revolution X leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Alyx
VR aim, reload, and grab inputs intense.
Revolution X
Light-gun target snapping is the entire demand
Half-Life: Alyx leans a little harder on reads, though the gap is small.
Half-Life: Alyx
Combine and headcrabs scripted.
Revolution X
Enemies pop out on rigid arcade scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Alyx
Resource and encounter variance light.
Revolution X
Spawn points surprise only until memorised
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life: Alyx
Few systems to tune.
Revolution X
Memorising spawns and hostage spots boosts scores
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.