head to head
The Secret of Monkey Island asks more than Riven: The Sequel to Myst, and the gap is variance.

Optimization · Pure Optimization
A cerebral puzzle-adventure that is essentially a logic puzzle to be fully solved.

Optimization · Pure Optimization
A fixed-solution puzzle adventure where finding the right inventory combination unlocks every obstacle.
Riven: The Sequel to Myst leans Optimization (Pure Optimization); The Secret of Monkey Island leans Optimization (Pure Optimization).
The Secret of Monkey Island leans a little harder on execution, though the gap is small.
Riven: The Sequel to Myst
no reflex or physical skill required
The Secret of Monkey Island
Clicking inventory items demands no twitch skill whatsoever
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Riven: The Sequel to Myst
no opponent present in the game
The Secret of Monkey Island
No adaptive opponent; all puzzles are fixed and authored
The Secret of Monkey Island leans clearly harder on variance.
Riven: The Sequel to Myst
fully deterministic puzzle world
The Secret of Monkey Island
Some hidden items require exploration but solutions are invariant
Riven: The Sequel to Myst leans a little harder on optimization, though the gap is small.
Riven: The Sequel to Myst
pure logic-puzzle solving, walkthrough-solvable
The Secret of Monkey Island
Correct item combinations and dialogue chains fully determine progress
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.