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.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.

Optimization · Practiced Mastery
An RPG where preparation, alchemy, and build choices outweigh raw combat reflexes.
The Elder Scrolls V: Skyrim leans Optimization (Pure Optimization); The Witcher 2: Assassins of Kings - Enhanced Edition leans Optimization (Practiced Mastery).
The Witcher 2: Assassins of Kings - Enhanced Edition leans a little harder on execution, though the gap is small.
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
The Witcher 2: Assassins of Kings - Enhanced Edition
combat timing and dodges matter
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
The Witcher 2: Assassins of Kings - Enhanced Edition
scripted monster and human AI
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
The Witcher 2: Assassins of Kings - Enhanced Edition
alchemy and loot drops vary
The Elder Scrolls V: Skyrim leans a little harder on optimization, though the gap is small.
The Elder Scrolls V: Skyrim
Skill stacking, enchant loops, and exploits are deeply solvable.
The Witcher 2: Assassins of Kings - Enhanced Edition
builds and preparation are 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.
full breakdown
The Elder Scrolls V: Skyrim →
full breakdown
The Witcher 2: Assassins of Kings - Enhanced Edition →