head to head
Layers of Fear (2016) asks more than Marbles on Stream, and the gap is optimization.

Variance · Systems & Chaos
A walking-horror experience where shifting level geometry creates variance that undermines optimisation.

Variance · Pure Chaos
Tests nothing but luck - a spectator marble race decided entirely by physics RNG.
Layers of Fear (2016) leans Variance (Systems & Chaos); Marbles on Stream leans Variance (Pure Chaos).
Layers of Fear (2016) leans a little harder on execution, though the gap is small.
Layers of Fear (2016)
Walking and interacting; no combat or twitch demand
Marbles on Stream
You watch a marble roll; no inputs matter
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Layers of Fear (2016)
No opponents at all; entirely environmental
Marbles on Stream
No opponent decisions exist to predict
Marbles on Stream leans a little harder on variance, though the gap is small.
Layers of Fear (2016)
Room geometry shifts semi-randomly, disorienting the player
Marbles on Stream
Physics RNG decides the entire race outcome
Layers of Fear (2016) leans clearly harder on optimization.
Layers of Fear (2016)
Limited learnable structure; the maze logic resists full mapping
Marbles on Stream
Nothing to solve beyond picking a marble skin
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.