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.

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

Optimization · Practiced Mastery
The original tomb-crawling platformer, a spatial puzzle solved with careful jumps.
Black Mesa leans Execution (Practiced Mastery); Tomb Raider leans Optimization (Practiced Mastery).
Black Mesa leans a little harder on execution, though the gap is small.
Black Mesa
Classic FPS aim and platforming sequences
Tomb Raider
Grid-based jumps need deliberate, precise positioning
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
Tomb Raider
Wildlife and guardians follow fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Black Mesa
Minor enemy placement surprises first run
Tomb Raider
First-run trap and secret locations are unknown
Tomb Raider leans a little harder on optimization, though the gap is small.
Black Mesa
Route, resource, and encounter knowledge
Tomb Raider
Levels are spatial puzzles with solvable routes
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.