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
A gothic horror FPS where a paranormal investigator fights a family curse with revolver in one hand and spells in the other.

Execution · Practiced Mastery
Robot-dinosaur hunting that rewards weak-point study and ranged precision.
Clive Barker's Undying leans Execution (Practiced Mastery); Horizon Zero Dawn leans Execution (Practiced Mastery).
Clive Barker's Undying leans a little harder on execution, though the gap is small.
Clive Barker's Undying
Dual-wielding spells and guns under pressure
Horizon Zero Dawn
Bow aiming and dodge timing matter.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Clive Barker's Undying
Horrors follow scripted patterns despite feeling malevolent
Horizon Zero Dawn
Machines follow fixed patterns, not adapting.
Clive Barker's Undying leans a little harder on variance, though the gap is small.
Clive Barker's Undying
First-run scares and unknown manor secrets hide information
Horizon Zero Dawn
Some loot and patrol randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Clive Barker's Undying
Spell upgrades and Scrye-revealed puzzles reward system mastery
Horizon Zero Dawn
Weak points, traps, builds fully 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.