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

Optimization · Systems & Chaos
Surviving and optimising a research facility escape by solving its crafting systems against scripted anomalies.

Optimization · Practiced Mastery
Community resource management under randomised zombie pressure, with light action execution.
Abiotic Factor leans Optimization (Systems & Chaos); State of Decay 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.
Abiotic Factor
Combat in tight facility corridors requires precise aim and positioning
State of Decay
Melee and driving are functional, not demanding
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Abiotic Factor
Anomaly and creature AI is scripted with fixed patterns
State of Decay
Zombies swarm by simple rules, never adapting
Abiotic Factor leans a little harder on variance, though the gap is small.
Abiotic Factor
Loot crates, anomaly behaviour, and facility section contents carry RNG
State of Decay
Dynamic events, infestations and survivor traits roll randomly
Abiotic Factor leans a little harder on optimization, though the gap is small.
Abiotic Factor
Facility routing, crafting tree unlocks, and power grid design are solvable
State of Decay
Base building, resource runs and survivor management are 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.