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 dark psychological point-and-click adventure driven by fixed puzzles and a disturbing story.

Optimization · Pure Optimization
A retro-tech horror anthology where text adventures and lab equipment hide one connected story.
Fran Bow leans Optimization (Pure Optimization); Stories Untold 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.
Fran Bow
Point-and-click inputs only
Stories Untold
Typing commands and flipping switches; no reflex test.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fran Bow
No opponents
Stories Untold
No opponent.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fran Bow
Hidden story layers until discovered
Stories Untold
Unknown horror beats on first encounter, fixed thereafter.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fran Bow
Fixed puzzle solutions; fully solvable
Stories Untold
Instruction-following and decoding puzzles with exact 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.