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 · Pure Optimization
Using stealth-phase positioning to construct optimal ambushes against scripted patrols.

Optimization · Pure Optimization
A zombie survival sim where long-term planning outweighs moment-to-moment skill.
Mutant Year Zero: Road to Eden 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.
Mutant Year Zero: Road to Eden
Stealth positioning before combat demands spatial precision
Project Zomboid
Combat is deliberate; precision matters but is slow.
Mutant Year Zero: Road to Eden leans a little harder on reads, though the gap is small.
Mutant Year Zero: Road to Eden
Enemies patrol fixed routes; no adaptive opponent modeling
Project Zomboid
Zombies follow scripted behaviour; no adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mutant Year Zero: Road to Eden
Hit chances and mutation procs introduce meaningful RNG
Project Zomboid
Loot spawns and zombie distributions randomized.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mutant Year Zero: Road to Eden
Stalker trait loadouts and pre-combat positioning are tight optimization puzzles
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.