head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

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

Optimization · Practiced Mastery
An open-world action game about blowing up Nazi installations across a stylized black-and-white Paris.
Biomutant leans Optimization (Practiced Mastery); The Saboteur leans Optimization (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
The Saboteur
Climbing, driving and shootouts need moderate dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Biomutant
Creatures follow scripted behaviors
The Saboteur
Nazi alarm AI follows predictable suspicion rules
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
The Saboteur
Patrols vary slightly across the open city
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Biomutant
Build crafting across mutations, gear, and classes
The Saboteur
Plotting demolition targets and escape routes is the game
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.