head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Optimization · Practiced Mastery
Open-world kung-fu action RPG starring a customizable mutant rodent in a toxic wasteland.

Execution · Practiced Mastery
Robot-dinosaur hunting that rewards weak-point study and ranged precision.
Biomutant leans Optimization (Practiced Mastery); Horizon Zero Dawn leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Biomutant
Kung-fu combos and gunplay timing
Horizon Zero Dawn
Bow aiming and dodge timing matter.
Horizon Zero Dawn leans a little harder on reads, though the gap is small.
Biomutant
Creatures follow scripted behaviors
Horizon Zero Dawn
Machines follow fixed patterns, not adapting.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Biomutant
Random loot and mutation drops
Horizon Zero Dawn
Some loot and patrol randomness.
Biomutant leans a little harder on optimization, though the gap is small.
Biomutant
Build crafting across mutations, gear, and classes
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.