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

Optimization · Pure Optimization
A dungeon-crawling MMORPG where labyrinthine D&D character builds are the true endgame.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Dungeons & Dragons Online leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dungeons & Dragons Online
Active dodging, traps, and jumping reward real hands.
Fallout: New Vegas
Shooter inputs with VATS assist
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dungeons & Dragons Online
Dungeon AI is scripted, never adaptive.
Fallout: New Vegas
Scripted factions and enemies
Dungeons & Dragons Online leans a little harder on variance, though the gap is small.
Dungeons & Dragons Online
Trap placements and dice rolls inject some randomness.
Fallout: New Vegas
Some loot and crit RNG
Dungeons & Dragons Online leans a little harder on optimization, though the gap is small.
Dungeons & Dragons Online
Multiclass build planning is famously deep and solvable.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.