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
A break-and-boost JRPG carried by job-routing and party-composition planning.

Optimization · Pure Optimization
Solvable team-building progression through Sinnoh's fixed trainers.
Octopath Traveler leans Optimization (Pure Optimization); Pokémon Diamond Version leans Optimization (Pure Optimization).
Octopath Traveler leans a little harder on execution, though the gap is small.
Octopath Traveler
Turn-based, no input demand
Pokémon Diamond Version
Menu battles need no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Octopath Traveler
Scripted enemies
Pokémon Diamond Version
Scripted trainers never adapt; online battles are optional
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Octopath Traveler
Hit, crit, and break rolls
Pokémon Diamond Version
Encounter and crit rolls are bounded, mappable randomness
Octopath Traveler leans a little harder on optimization, though the gap is small.
Octopath Traveler
Job, break-boost, party routing deeply rewarded
Pokémon Diamond Version
Physical-special split deepens solvable team building
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.