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

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

Variance · Light / Casual
A brief branching story experienced rather than tested.
Everlasting Summer leans Optimization (Light / Casual); Missed Messages. leans Variance (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Everlasting Summer
Reading and clicking choices, nothing physical
Missed Messages.
Clicking through scenes takes no skill
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
Missed Messages.
Branches are authored, nothing adapts
Missed Messages. leans a little harder on variance, though the gap is small.
Everlasting Summer
Route outcomes are hidden only until first playthroughs
Missed Messages.
Endings are hidden until each path is tried
Everlasting Summer leans a little harder on optimization, though the gap is small.
Everlasting Summer
Mapping choice branches to endings is trivially solvable
Missed Messages.
Finding all endings is a short checklist
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.