head to head
Silent Hill: Book of Memories asks more than Final Fantasy XV, and the gap is variance.

Optimization · Practiced Mastery
A real-time RPG carried by ascension-grid routing and magic crafting.

Optimization · Practiced Mastery
A dungeon-crawler spin-off testing build management across randomised otherworlds.
Final Fantasy XV leans Optimization (Practiced Mastery); Silent Hill: Book of Memories leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XV
Real-time combat, modest input demand
Silent Hill: Book of Memories
Twin-stick melee and dodge timing matter moderately
Final Fantasy XV leans a little harder on reads, though the gap is small.
Final Fantasy XV
Scripted enemies
Silent Hill: Book of Memories
Monsters follow simple scripted aggression
Silent Hill: Book of Memories leans clearly harder on variance.
Final Fantasy XV
Loot and ascension variance
Silent Hill: Book of Memories
Procedural dungeon layouts and loot rolls vary each run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XV
Ascension grid, magic crafting, party planning
Silent Hill: Book of Memories
Karma builds, weapon upkeep and puzzle rooms reward system mastery
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.