Building comparison
head to head
Half-Life: AlyxvsMarble Mountain
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.
Half-Life: Alyx
Execution · Pure Mechanics
VR Half-Life where hand-presence interaction defines every fight.
Marble Mountain
Execution · Pure Mechanics
A marble-rolling platformer testing precise tilt control.
Half-Life: Alyx leans Execution (Pure Mechanics); Marble Mountain leans Execution (Pure Mechanics).
Half-Life: AlyxMarble Mountain
Axis by axis
Execution7 vs 7
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.
Marble Mountain
precise tilt-control marble navigation
Reads1 vs 0
Half-Life: Alyx leans a little harder on reads, though the gap is small.
Half-Life: Alyx
Combine and headcrabs scripted.
Marble Mountain
no opponent, solo obstacle courses
Variance2 vs 2
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.
Marble Mountain
minor randomized obstacle timing
Optimization3 vs 3
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.
Marble Mountain
route and speed optimization per level
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.