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
A tropical farming life-sim about reviving an island community.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Coral Island 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.
Coral Island
Farming inputs are gentle.
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Coral Island
Villagers follow scripted schedules.
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
Coral Island leans a little harder on variance, though the gap is small.
Coral Island
Crop quality and fishing have RNG.
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Coral Island
Farm planning and bundle routing reward optimization.
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.