head to head
Fallout: New Vegas asks more than Where's My Water? 2, and the gap is execution.

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

Optimization · Pure Optimization
Tests physics-puzzle planning - finding the right cuts in fixed levels.
Fallout: New Vegas leans Optimization (Pure Optimization); Where's My Water? 2 leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Where's My Water? 2
Finger-drawn dirt cuts need only mild precision
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Where's My Water? 2
Solo physics puzzles - no opponent
Fallout: New Vegas leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Where's My Water? 2
Levels are fixed and fully visible
Fallout: New Vegas leans clearly harder on optimization.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Where's My Water? 2
Each level has solvable optimal cut sequences
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.