head to head
Fallout: New Vegas asks more than PewDiePie's Tuber Simulator, and the gap is execution.

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

Optimization · Pure Optimization
An idle economy where optimal purchase order and room layout do everything.
Fallout: New Vegas leans Optimization (Pure Optimization); PewDiePie's Tuber Simulator leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
PewDiePie's Tuber Simulator
Tapping menus requires nothing
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
PewDiePie's Tuber Simulator
No opponent exists to predict
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
PewDiePie's Tuber Simulator
Minor event RNG around video topics
Fallout: New Vegas leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
PewDiePie's Tuber Simulator
View-per-cost room layouts and upgrade order are the entire game
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.