head to head
Fallout: New Vegas asks more than The House of Da Vinci, and the gap is execution.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.

Optimization · Pure Optimization
A Room-style 3D puzzle box game set in Leonardo da Vinci's workshop of intricate contraptions.
Fallout: New Vegas leans Optimization (Pure Optimization); The House of Da Vinci leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
The House of Da Vinci
Light touch manipulation of mechanisms; trivial precision.
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
The House of Da Vinci
No adaptive opposition exists.
The House of Da Vinci leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
The House of Da Vinci
Hidden compartments and unknown contraptions; converges after discovery.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
The House of Da Vinci
Solving fixed clockwork mechanisms is the entire test.
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.