head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

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

Optimization · Pure Optimization
A tower-defense action game about optimizing trap layouts against orc waves.
Fallout: New Vegas leans Optimization (Pure Optimization); Orcs Must Die! Deathtrap leans Optimization (Pure Optimization).
Orcs Must Die! Deathtrap leans a little harder on execution, though the gap is small.
Fallout: New Vegas
Shooter inputs with VATS assist
Orcs Must Die! Deathtrap
aiming traps and weapons under waves
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Orcs Must Die! Deathtrap
scripted orc waves, no adaptation
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
Orcs Must Die! Deathtrap
wave composition randomness
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
Orcs Must Die! Deathtrap
trap layout and co-op build optimization
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.