head to head
Neither is simply harder - they are hard in different places. Fallout: New Vegas demands more execution; Heroes of Might & Magic: Olden Era demands more variance.

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

Optimization · Pure Optimization
A turn-based strategy game built on hero development and army optimization.
Fallout: New Vegas leans Optimization (Pure Optimization); Heroes of Might & Magic: Olden Era leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Heroes of Might & Magic: Olden Era
no reflex demand, turn-based strategy
Heroes of Might & Magic: Olden Era leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Heroes of Might & Magic: Olden Era
human multiplayer opponents adapt strategy
Heroes of Might & Magic: Olden Era leans clearly harder on variance.
Fallout: New Vegas
Some loot and crit RNG
Heroes of Might & Magic: Olden Era
combat rolls and map randomness
Heroes of Might & Magic: Olden Era leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Heroes of Might & Magic: Olden Era
hero builds, economy, army composition
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.