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.

Execution · Practiced Mastery
Fan-built ground-up remake of Half-Life with a reimagined Xen.

Optimization · Practiced Mastery
A 2D stealth game where planning a clean route matters more than combat.
Black Mesa leans Execution (Practiced Mastery); Mark of the Ninja: Remastered leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Black Mesa
Classic FPS aim and platforming sequences
Mark of the Ninja: Remastered
precise stealth timing and takedown execution
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Black Mesa
Marines and aliens follow set scripts
Mark of the Ninja: Remastered
guards use fixed detection scripts
Black Mesa leans a little harder on variance, though the gap is small.
Black Mesa
Minor enemy placement surprises first run
Mark of the Ninja: Remastered
minor guard patrol randomness
Mark of the Ninja: Remastered leans a little harder on optimization, though the gap is small.
Black Mesa
Route, resource, and encounter knowledge
Mark of the Ninja: Remastered
route planning to avoid detection entirely
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.