head to head
Neither is simply harder - they are hard in different places. Fallout: New Vegas demands more execution; Tactics Ogre: Reborn demands more variance.

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

Optimization · Pure Optimization
Mastering interconnected class and crafting systems to methodically solve fixed enemy compositions.
Fallout: New Vegas leans Optimization (Pure Optimization); Tactics Ogre: Reborn leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Tactics Ogre: Reborn
Turn-based; no timing inputs; menu-driven throughout
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Scripted factions and enemies
Tactics Ogre: Reborn
Enemy AI uses fixed class-based targeting, not player modeling
Tactics Ogre: Reborn leans clearly harder on variance.
Fallout: New Vegas
Some loot and crit RNG
Tactics Ogre: Reborn
Tarot card draws and random loot add mild variance layer
Tactics Ogre: Reborn leans a little harder on optimization, though the gap is small.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Tactics Ogre: Reborn
Class wheel, finishers, and crafting are extensively solvable systems
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.