head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
A first-person ghost mystery testing investigation and puzzle mapping over reflexes.

Optimization · Pure Optimization
Uncovering a fixed murder mystery through inventory puzzles and deduction.
Echo Night leans Optimization (Pure Optimization); Still Life leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Echo Night
First-person walking with rare chase escapes
Still Life
Pointing and clicking carries no physical demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Echo Night
Ghosts trigger on fixed conditions, never adapting
Still Life
The killer is a fixed narrative, not an adapting opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Echo Night
Spirits' requirements are hidden information to uncover
Still Life
The mystery's facts are hidden until uncovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Echo Night
Mapping each ghost's appeasement puzzle solves the ship
Still Life
Inventory puzzles and deduction steps have fixed solutions
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.