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 · Pure Optimization
An infamously cryptic NES adventure where lying villagers obscure how to break Dracula's curse.
Abiotic Factor leans Optimization (Systems & Chaos); Castlevania II: Simon's Quest 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.
Abiotic Factor
Combat in tight facility corridors requires precise aim and positioning
Castlevania II: Simon's Quest
Modest whip combat; day-night enemies.
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
Castlevania II: Simon's Quest
No adaptive opposition.
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
Castlevania II: Simon's Quest
Deliberately false villager clues hide the real path.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Abiotic Factor
Facility routing, crafting tree unlocks, and power grid design are solvable
Castlevania II: Simon's Quest
Once decoded, it is pure item-and-route knowledge.
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.