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

Optimization · Pure Optimization
Landmark first-person puzzle adventure solved by careful observation and note-taking.

Optimization · Pure Optimization
A farm-life sim solved by season routing and profit optimization.
Myst leans Optimization (Pure Optimization); Stardew Valley leans Optimization (Pure Optimization).
Stardew Valley leans a little harder on execution, though the gap is small.
Myst
Clicking through static scenes
Stardew Valley
Trivial timing on fishing and combat
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Myst
No adversary at all
Stardew Valley
No adaptive opponent exists
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Myst
Clues hidden until found, then fixed forever
Stardew Valley
Crop luck and geode RNG matter modestly
Stardew Valley leans a little harder on optimization, though the gap is small.
Myst
Observation-driven logic puzzles with deterministic solutions
Stardew Valley
Routing seasons, profit loops, and bundles dominates
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.