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

Execution · Light / Casual
Branching interactive thriller where QTE choices decide who survives the Origami Killer case.

Execution · Light / Casual
An emotional traversal story with light puzzles and almost no skill gate.
Heavy Rain leans Execution (Light / Casual); Sea of Solitude leans Execution (Light / Casual).
Heavy Rain leans a little harder on execution, though the gap is small.
Heavy Rain
QTE prompts under tension
Sea of Solitude
Gentle traversal and swimming with generous margins
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Heavy Rain
No adaptive opposition
Sea of Solitude
Monsters are story beats, not adversaries
Heavy Rain leans a little harder on variance, though the gap is small.
Heavy Rain
First-run uncertainty about consequences
Sea of Solitude
The journey is entirely scripted
Heavy Rain leans a little harder on optimization, though the gap is small.
Heavy Rain
Branch knowledge fully solves outcomes
Sea of Solitude
Light environmental puzzles with single solutions
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.