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

Optimization · Pure Optimization
Iterating cause-and-effect sequences to untangle a fixed narrative puzzle.

Optimization · Systems & Chaos
A dark psychological narrative game about twin sisters, a drowned body, and wartime Italy, told through photography.
Last Day of June leans Optimization (Pure Optimization); Martha Is Dead leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Last Day of June
Slow walking and simple interactions, no dexterity
Martha Is Dead
Walking and photography mechanics demand nothing physical
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Last Day of June
No opponent - a fixed narrative system
Martha Is Dead
No opponents; the story unfolds regardless of play
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Last Day of June
Consequences of changes are hidden until tried
Martha Is Dead
Narrative twists are the only meaningful unknowns
Last Day of June leans a little harder on optimization, though the gap is small.
Last Day of June
Sequencing the four characters' actions is the puzzle
Martha Is Dead
Darkroom photography and choices are light, learnable systems
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.