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

Execution · Light / Casual
A fifteen-minute narrated joke that tests nothing but willingness to listen.

Optimization · Light / Casual
A first-person mystery about a fire lookout in a Wyoming forest.
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist leans Execution (Light / Casual); Firewatch leans Optimization (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist
Walking and pulling levers, nothing more
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.
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist
A scripted narrator is not an opponent
Firewatch
No adaptive opposition.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist
Fifteen linear minutes, identical each run
Firewatch
Minor environmental discoveries.
Firewatch leans a little harder on optimization, though the gap is small.
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist
Nothing to solve - the joke is the content
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.
full breakdown
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist →
full breakdown
Firewatch →