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

Optimization · Pure Optimization
A refined break-and-boost JRPG won by job and latent-power optimization.

Optimization · Pure Optimization
A farm-life sim solved by season routing and profit optimization.
Octopath Traveler II leans Optimization (Pure Optimization); Stardew Valley 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.
Octopath Traveler II
Turn-based, no input demand
Stardew Valley
Trivial timing on fishing and combat
Octopath Traveler II leans a little harder on reads, though the gap is small.
Octopath Traveler II
Scripted enemies
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.
Octopath Traveler II
Hit, crit, and break rolls
Stardew Valley
Crop luck and geode RNG matter modestly
Octopath Traveler II leans a little harder on optimization, though the gap is small.
Octopath Traveler II
Job, latent power, party routing deeply rewarded
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.