head to head
Ever 17: The Out of Infinity asks more than Firewatch, and the gap is variance.

Variance · Light / Casual
A sci-fi mystery visual novel where survivors trapped in an underwater park unravel a layered truth.

Optimization · Light / Casual
A first-person mystery about a fire lookout in a Wyoming forest.
Ever 17: The Out of Infinity leans Variance (Light / Casual); Firewatch leans Optimization (Light / Casual).
Firewatch leans a little harder on execution, though the gap is small.
Ever 17: The Out of Infinity
Reading only, no inputs of skill
Firewatch
Walking and radio dialogue only.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ever 17: The Out of Infinity
No adaptive opposition
Firewatch
No adaptive opposition.
Ever 17: The Out of Infinity leans clearly harder on variance.
Ever 17: The Out of Infinity
Hidden narrative truth and locked routes drive first-run mystery
Firewatch
Minor environmental discoveries.
Ever 17: The Out of Infinity leans a little harder on optimization, though the gap is small.
Ever 17: The Out of Infinity
Flag and route ordering to unlock the true ending
Firewatch
Few systems to optimize.
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.