head to head
Neither is simply harder - they are hard in different places. Fallout: New Vegas demands more execution; Football Manager 26 demands more variance.

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

Optimization · Pure Optimization
Tests long-horizon squad-building and tactical optimisation against simulation noise.
Fallout: New Vegas leans Optimization (Pure Optimization); Football Manager 26 leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Football Manager 26
Menus and team talks need no hands
Football Manager 26 leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Football Manager 26
AI managers are mappable; online rivals rare
Football Manager 26 leans clearly harder on variance.
Fallout: New Vegas
Some loot and crit RNG
Football Manager 26
Match engine rolls and injuries swing seasons
Football Manager 26 leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Football Manager 26
Squad building, tactics and finances are a solvable machine
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.