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

Execution · Practiced Mastery
A monochrome puzzle-platformer about a boy lost in limbo.

Execution · Practiced Mastery
Lara's reboot blending cover shooting, climbing, and survival cinema.
Limbo leans Execution (Practiced Mastery); Tomb Raider (2013) leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Limbo
Tight platforming with trial-and-error.
Tomb Raider (2013)
Bow aim, QTEs, and platforming timing matter.
Tomb Raider (2013) leans a little harder on reads, though the gap is small.
Limbo
Hazards are scripted.
Tomb Raider (2013)
Scripted enemy waves, no adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Limbo
No randomness.
Tomb Raider (2013)
Minimal randomness in encounters.
Limbo leans a little harder on optimization, though the gap is small.
Limbo
Puzzles have fixed solutions.
Tomb Raider (2013)
Weapon upgrades and skill picks straightforward.
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.