head to head
Fallout: New Vegas asks more than Back to the Future: The Game, and the gap is execution.

Optimization · Pure Optimization
A story-first adventure with gentle item-puzzle logic as its only test.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Back to the Future: The Game leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Back to the Future: The Game
Telltale point-and-click, zero dexterity
Fallout: New Vegas
Shooter inputs with VATS assist
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Back to the Future: The Game
Characters follow the episodic script
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.
Back to the Future: The Game
Puzzle solutions are hidden until found
Fallout: New Vegas
Some loot and crit RNG
Fallout: New Vegas leans clearly harder on optimization.
Back to the Future: The Game
Light item-logic puzzles drive each episode
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.