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

Optimization · Pure Optimization
Classic open-world RPG where stats and broken crafting systems trump twitch skill.

Optimization · Pure Optimization
Open-world detective work testing evidence deduction without hand-holding.
The Elder Scrolls III: Morrowind leans Optimization (Pure Optimization); The Sinking City 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.
The Elder Scrolls III: Morrowind
Dice-roll combat ignores aim skill
The Sinking City
Clunky combat is deliberately undemanding
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Elder Scrolls III: Morrowind
No adaptive opposition
The Sinking City
Monsters and citizens follow fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Elder Scrolls III: Morrowind
Hit chances rolled behind the screen
The Sinking City
Case clues are hidden information until investigated
The Elder Scrolls III: Morrowind leans a little harder on optimization, though the gap is small.
The Elder Scrolls III: Morrowind
Alchemy and spellcrafting are famously solvable
The Sinking City
Cross-referencing evidence and city archives is the deduction core
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.