head to head
War Selection asks more than Fallout: New Vegas, and the gap is reads.

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

Optimization · Pure Optimization
A survival strategy game about building a civilization while battling other players.
Fallout: New Vegas leans Optimization (Pure Optimization); War Selection leans Optimization (Pure Optimization).
Fallout: New Vegas leans a little harder on execution, though the gap is small.
Fallout: New Vegas
Shooter inputs with VATS assist
War Selection
Some real-time control but not twitch-focused.
War Selection leans clearly harder on reads.
Fallout: New Vegas
Scripted factions and enemies
War Selection
Human opponents in multiplayer require some prediction.
War Selection leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
War Selection
Resource spawns and combat rolls add unpredictability.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
War Selection
Base-building and civilization strategy are deeply solvable.
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.