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

Optimization · Pure Optimization
The Myst sequel: a slow, wordless puzzle adventure solved by observing an alien world's internal logic.
Day of the Tentacle leans Optimization (Pure Optimization); Riven leans Optimization (Pure Optimization).
Day of the Tentacle leans a little harder on execution, though the gap is small.
Day of the Tentacle
SCUMM interface eliminates any timing or motor demand
Riven
Point-and-click; no dexterity required at all
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Day of the Tentacle
No opponent; multi-era puzzles are fully scripted
Riven
No opponent of any kind
Riven leans a little harder on variance, though the gap is small.
Day of the Tentacle
Deterministic world state across three time periods
Riven
Information is hidden only until you observe it
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Day of the Tentacle
Cross-era cause-and-effect chains form a tightly solvable logic puzzle
Riven
Deciphering the world's logic is one giant solvable puzzle
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.