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 · Light / Casual
A branching visual novel that tests little beyond exploring choice routes.

Variance · Light / Casual
A narrative horror experience testing curiosity more than any skill axis.
Everlasting Summer leans Optimization (Light / Casual); MiSide leans Variance (Light / Casual).
MiSide leans a little harder on execution, though the gap is small.
Everlasting Summer
Reading and clicking choices, nothing physical
MiSide
Walking and minigames make light physical demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Everlasting Summer
No opponent - characters follow fixed branching scripts
MiSide
Mita is a scripted character, not an adaptive mind
MiSide leans a little harder on variance, though the gap is small.
Everlasting Summer
Route outcomes are hidden only until first playthroughs
MiSide
Story surprises are hidden only until experienced
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Everlasting Summer
Mapping choice branches to endings is trivially solvable
MiSide
Linear narrative with simple puzzles to step through
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.