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

Optimization · Pure Optimization
A pure optimization exercise where sphere grid planning and boss weakness exploitation defines mastery.

Optimization · Pure Optimization
Tests demon-fusion team building and tactical grid optimization against scripted encounter design.
Final Fantasy X leans Optimization (Pure Optimization); Shin Megami Tensei: Devil Survivor 2 - Record Breaker 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
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Turn-based menus - hands are 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
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Enemy AI follows mappable priorities, never models you
Shin Megami Tensei: Devil Survivor 2 - Record Breaker leans a little harder on variance, though the gap is small.
Final Fantasy X
Minimal RNG in base game; overdrive gauge charges predictably
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Demon auction and skill cracks add manageable RNG
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
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Team building, fusion and grid positioning are deeply 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.
full breakdown
Final Fantasy X →
full breakdown
Shin Megami Tensei: Devil Survivor 2 - Record Breaker →