head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
A Myst-successor puzzle adventure about decoding alien machinery across spliced worlds.

Optimization · Pure Optimization
A puzzle-forward adventure testing creative lateral thinking against a fixed authored solution space.
Obduction leans Optimization (Pure Optimization); Return to Monkey Island 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.
Obduction
Walking and clicking only
Return to Monkey Island
Modern hint system and relaxed interface remove all reflex demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Obduction
No opponents at all
Return to Monkey Island
Entirely authored puzzles with no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Obduction
Deterministic alien machinery
Return to Monkey Island
Virtually no randomness; solutions are static
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Obduction
Number-system and swap-machine puzzles are fully solvable
Return to Monkey Island
Lateral-thinking item puzzles require mapping cause and effect chains
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.