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.

Execution · Practiced Mastery
Big Daddy POV return to Rapture with tighter combat systems.

Execution · Practiced Mastery
Parkour-fueled zombie survival where movement skill carries every encounter.
BioShock 2 leans Execution (Practiced Mastery); Dying Light 2 Stay Human leans Execution (Practiced Mastery).
Dying Light 2 Stay Human leans a little harder on execution, though the gap is small.
BioShock 2
Dual-wield drill and gun timing matter.
Dying Light 2 Stay Human
Parkour and melee timing central.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2
Splicer AI scripted, not adaptive.
Dying Light 2 Stay Human
Infected and humans scripted, predictable.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2
Sister-gathering waves add randomness.
Dying Light 2 Stay Human
Night spawns and loot vary.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2
Plasmid combos and gear loadouts solvable.
Dying Light 2 Stay Human
Skill trees, weapon mods, route choices 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.