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

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

Optimization · Pure Optimization
A Napoleonic strategy game testing empire economy and battlefield formation play.
Fallout: New Vegas leans Optimization (Pure Optimization); Imperial Glory leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Imperial Glory
Pausable battles and turn-based empire management, minimal dexterity
Imperial Glory leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Imperial Glory
Human multiplayer battles allow some feinting, AI doesn't adapt
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Some loot and crit RNG
Imperial Glory
Diplomacy outcomes add modest uncertainty
Fallout: New Vegas leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Imperial Glory
Economy, research and Napoleonic battle formations are the solvable core
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.