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 · Practiced Mastery
A loot-heavy open-world action RPG with flashy combo combat and a famously breakable crafting system.

Optimization · Pure Optimization
A Zelda-like puzzle-action game solved by decoding its hidden manual.
Kingdoms of Amalur: Reckoning leans Optimization (Practiced Mastery); Tunic 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.
Kingdoms of Amalur: Reckoning
Dodge-and-combo combat, forgiving timing
Tunic
Dodge-roll combat demands timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdoms of Amalur: Reckoning
Enemies never adapt to your habits
Tunic
Bosses are scripted, not adaptive
Kingdoms of Amalur: Reckoning leans a little harder on variance, though the gap is small.
Kingdoms of Amalur: Reckoning
Loot rolls add light randomness
Tunic
Minimal RNG in core loop
Tunic leans a little harder on optimization, though the gap is small.
Kingdoms of Amalur: Reckoning
Destiny builds and crafting trivialise difficulty
Tunic
Manual decoding and build choices solve everything
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.