head to head
Fallout: New Vegas asks more than Assemble with Care, and the gap is execution.

Optimization · Pure Optimization
A gentle narrative game about repairing keepsakes for the people of a small town.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Assemble with Care leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Assemble with Care
Careful but forgiving object manipulation.
Fallout: New Vegas
Shooter inputs with VATS assist
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Assemble with Care
Pure narrative; nobody opposes you.
Fallout: New Vegas
Scripted factions and enemies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assemble with Care
Object internals unknown until opened; quickly mapped.
Fallout: New Vegas
Some loot and crit RNG
Fallout: New Vegas leans clearly harder on optimization.
Assemble with Care
Disassembly and repair follow fixed, learnable steps.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.