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 gentle turn-based RPG testing costume-ability synergy with light timing minigames.

Optimization · Practiced Mastery
A real-time RPG carried by ascension-grid routing and magic crafting.
Costume Quest 2 leans Optimization (Pure Optimization); Final Fantasy XV leans Optimization (Practiced Mastery).
Final Fantasy XV leans a little harder on execution, though the gap is small.
Costume Quest 2
Timed button presses boost attacks but stay forgiving
Final Fantasy XV
Real-time combat, modest input demand
Final Fantasy XV leans a little harder on reads, though the gap is small.
Costume Quest 2
Enemies follow fixed turn-based scripts, never adapting
Final Fantasy XV
Scripted enemies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Costume Quest 2
Little is hidden beyond which costume drops where
Final Fantasy XV
Loot and ascension variance
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Costume Quest 2
Picking costume combos and stamps that trivialise fights is the game
Final Fantasy XV
Ascension grid, magic crafting, party planning
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.