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 cheerful farming-sim sequel about ranching alien slimes for profit.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Slime Rancher 2 leans Optimization (Pure Optimization); The Elder Scrolls V: Skyrim 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.
Slime Rancher 2
light movement and vacuum-aim execution
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Slime Rancher 2 leans a little harder on reads, though the gap is small.
Slime Rancher 2
no adaptive opposition, solo farming sim
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.
Slime Rancher 2
slime spawn and behavior randomness minor
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
The Elder Scrolls V: Skyrim leans a little harder on optimization, though the gap is small.
Slime Rancher 2
ranch layout and economy optimization dominate
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.