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

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

Optimization · Pure Optimization
An alpine horror tale testing puzzle deduction and exploration under light dread.
Fallout: New Vegas leans Optimization (Pure Optimization); Mundaun leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Mundaun
Sparse hostile encounters need only basic evasion
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Mundaun
The valley's horrors follow folk-tale scripts
Mundaun leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Mundaun
Alpine secrets are hidden until uncovered
Fallout: New Vegas leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Mundaun
Hand-crafted puzzles and routes have fixed solutions
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.