head to head
Path of Exile asks more than Project Zomboid, and the gap is optimization.

Optimization · Pure Optimization
A theorycraft-dense ARPG about engineering builds through randomised loot and crafting.

Optimization · Pure Optimization
A zombie survival sim where long-term planning outweighs moment-to-moment skill.
Path of Exile leans Optimization (Pure Optimization); Project Zomboid leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Path of Exile
Some dodge and reflex play, but build carries fights.
Project Zomboid
Combat is deliberate; precision matters but is slow.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Path of Exile
Mobs and bosses are scripted; no adaptation.
Project Zomboid
Zombies follow scripted behaviour; no adaptation.
Path of Exile leans a little harder on variance, though the gap is small.
Path of Exile
Loot, map mods, and crafting outcomes are heavily random.
Project Zomboid
Loot spawns and zombie distributions randomized.
Path of Exile leans clearly harder on optimization.
Path of Exile
Passive tree, crafting, and economy form near-infinite theorycraft.
Project Zomboid
Skill grinding, base setup, and routing define survival.
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.