head to head
Fallout: New Vegas asks more than Day of the Tentacle, and the gap is execution.

Optimization · Pure Optimization
A time-travel puzzle game built entirely on deducing cross-era item interactions with no randomness.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Day of the Tentacle leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Day of the Tentacle
SCUMM interface eliminates any timing or motor demand
Fallout: New Vegas
Shooter inputs with VATS assist
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Day of the Tentacle
No opponent; multi-era puzzles are fully scripted
Fallout: New Vegas
Scripted factions and enemies
Fallout: New Vegas leans a little harder on variance, though the gap is small.
Day of the Tentacle
Deterministic world state across three time periods
Fallout: New Vegas
Some loot and crit RNG
Day of the Tentacle leans a little harder on optimization, though the gap is small.
Day of the Tentacle
Cross-era cause-and-effect chains form a tightly solvable logic puzzle
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.