head to head
Fallout: New Vegas asks more than Penumbra: Overture, 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 physics-puzzle horror game where methodical object manipulation and route knowledge reduce all tension.
Fallout: New Vegas leans Optimization (Pure Optimization); Penumbra: Overture leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Penumbra: Overture
Physics-based interaction and basic evasion; low precision demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Scripted factions and enemies
Penumbra: Overture
Dogs follow scripted patrol and alarm states
Penumbra: Overture leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Penumbra: Overture
Some item placements are hidden on first run
Fallout: New Vegas leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Penumbra: Overture
Puzzle solutions and safe-zone routing are fully learnable
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.