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

Optimization · Light / Casual
A short scripted horror story with light item puzzles - mood over mechanics.

Optimization · Light / Casual
A choice-driven narrative adventure testing little beyond attention to consequences.
Distraint 2 leans Optimization (Light / Casual); Dreamfall Chapters leans Optimization (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Distraint 2
Walking and simple item use only
Dreamfall Chapters
Walking and dialogue selection demand nothing physical
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Distraint 2
Horror beats are scripted, nothing reacts to you
Dreamfall Chapters
No adaptive opposition in a scripted narrative
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Distraint 2
Scares and solutions are unknown once
Dreamfall Chapters
Choice consequences are hidden until they land
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Distraint 2
Light item puzzles with single answers
Dreamfall Chapters
Light puzzles and choice mapping, mostly story consumption
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.