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

Optimization · Pure Optimization
Optimizing affinity paths and tech web choices on a randomized alien frontier.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Civilization: Beyond Earth leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Civilization: Beyond Earth
Point-and-click turn actions; nothing physical
Fallout: New Vegas
Shooter inputs with VATS assist
Civilization: Beyond Earth leans a little harder on reads, though the gap is small.
Civilization: Beyond Earth
Faction AI uses static scripts, not player-reactive strategies
Fallout: New Vegas
Scripted factions and enemies
Civilization: Beyond Earth leans clearly harder on variance.
Civilization: Beyond Earth
Alien spawns and fog of war add manageable hidden elements
Fallout: New Vegas
Some loot and crit RNG
Civilization: Beyond Earth leans a little harder on optimization, though the gap is small.
Civilization: Beyond Earth
Affinity choices and tech web routing define victory conditions deeply
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.