head to head
Neither is simply harder - they are hard in different places. Fallout: New Vegas demands more execution; Pathfinder: Kingmaker demands more variance.

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

Optimization · Pure Optimization
A Pathfinder system-mastery game where feat optimization and kingdom timeline routing determine survival.
Fallout: New Vegas leans Optimization (Pure Optimization); Pathfinder: Kingmaker leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Pathfinder: Kingmaker
Real-time-with-pause removes twitch; timed kingdom events add pressure marginally
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
Pathfinder: Kingmaker
All enemies and advisors follow scripted patterns without player modelling
Pathfinder: Kingmaker leans clearly harder on variance.
Fallout: New Vegas
Some loot and crit RNG
Pathfinder: Kingmaker
Hidden ability check thresholds and timed kingdom deadlines create unknowns
Pathfinder: Kingmaker leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Pathfinder: Kingmaker
Pathfinder feat chains and kingdom management routing have known optimal 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.