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.

Execution · Practiced Mastery
An open-world revenge tale where a new shapeshifter hunts Alex Mercer through plague-zoned New York.

Execution · Practiced Mastery
A campy 16-bit run-and-gun about rescuing neighbors from B-movie monsters.
Prototype 2 leans Execution (Practiced Mastery); Zombies Ate My Neighbors 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.
Prototype 2
Power-swapping combat and traversal demand decent dexterity
Zombies Ate My Neighbors
Dodging monsters while sniping with squirt guns
Prototype 2 leans a little harder on reads, though the gap is small.
Prototype 2
Blackwatch and infected never adapt
Zombies Ate My Neighbors
Monster movie AI is fully patterned
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Prototype 2
Sandbox encounters carry slight randomness
Zombies Ate My Neighbors
Victim placement varies slightly per level
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Prototype 2
Mutation upgrades and target-hunting routes reward planning
Zombies Ate My Neighbors
Weapon-versus-monster matchups and level routing
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.