head to head
The Elder Scrolls V: Skyrim asks more than Neighbours from Hell 2: On Vacation, and the gap is optimization.

Optimization · Pure Optimization
A prank-based puzzle game about sequencing traps against a scripted neighbor.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Neighbours from Hell 2: On Vacation leans Optimization (Pure Optimization); The Elder Scrolls V: Skyrim leans Optimization (Pure Optimization).
The Elder Scrolls V: Skyrim leans a little harder on execution, though the gap is small.
Neighbours from Hell 2: On Vacation
light timing on trap execution
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Neighbours from Hell 2: On Vacation leans a little harder on reads, though the gap is small.
Neighbours from Hell 2: On Vacation
neighbor follows scripted routine, not adaptive
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Neighbours from Hell 2: On Vacation
some randomness in reaction timing
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
The Elder Scrolls V: Skyrim leans clearly harder on optimization.
Neighbours from Hell 2: On Vacation
puzzle-solving trap sequences per room
The Elder Scrolls V: Skyrim
Skill stacking, enchant loops, and exploits are deeply solvable.
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.