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

Optimization · Pure Optimization
A physics-puzzle horror game where methodical object manipulation and route knowledge reduce all tension.

Optimization · Pure Optimization
Classic open-world RPG where stats and broken crafting systems trump twitch skill.
Penumbra: Overture leans Optimization (Pure Optimization); The Elder Scrolls III: Morrowind 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.
Penumbra: Overture
Physics-based interaction and basic evasion; low precision demand
The Elder Scrolls III: Morrowind
Dice-roll combat ignores aim skill
Penumbra: Overture leans a little harder on reads, though the gap is small.
Penumbra: Overture
Dogs follow scripted patrol and alarm states
The Elder Scrolls III: Morrowind
No adaptive opposition
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Penumbra: Overture
Some item placements are hidden on first run
The Elder Scrolls III: Morrowind
Hit chances rolled behind the screen
The Elder Scrolls III: Morrowind leans a little harder on optimization, though the gap is small.
Penumbra: Overture
Puzzle solutions and safe-zone routing are fully learnable
The Elder Scrolls III: Morrowind
Alchemy and spellcrafting are famously 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.