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 pure optimization exercise where sphere grid planning and boss weakness exploitation defines mastery.

Optimization · Pure Optimization
Skyscraper management sim about stacking compatible tenants atop sound infrastructure.
Final Fantasy X leans Optimization (Pure Optimization); Project Highrise 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.
Final Fantasy X
Fully turn-based; zero time pressure on inputs
Project Highrise
Calm tower planning; hands irrelevant.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy X
All aeons and fiends operate on fixed AI scripts
Project Highrise
Tenants are need-driven simulation, never adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy X
Minimal RNG in base game; overdrive gauge charges predictably
Project Highrise
Tenant applications and events vary slightly.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy X
Sphere Grid routing and break damage limits make the game theoretically solvable
Project Highrise
Utility routing, tenant mix and cash flow are solvable.
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.