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 · Systems & Chaos
A visual novel thriller mixing escape-room puzzles with branching life-or-death story routes.

Optimization · Systems & Chaos
A fairy-tale adventure testing patient discovery of fixed puzzle solutions.
999: Nine Hours, Nine Persons, Nine Doors leans Optimization (Systems & Chaos); The Night of the Rabbit leans Optimization (Systems & Chaos).
The Night of the Rabbit leans a little harder on execution, though the gap is small.
999: Nine Hours, Nine Persons, Nine Doors
Tapping through text and puzzles, zero dexterity
The Night of the Rabbit
Pointing and clicking has no motor ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
999: Nine Hours, Nine Persons, Nine Doors
Characters follow a fixed script, never adapt
The Night of the Rabbit
No opponent of any kind to predict
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
999: Nine Hours, Nine Persons, Nine Doors
Hidden story branches and twists drive first playthroughs
The Night of the Rabbit
Puzzle solutions are hidden information until discovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
999: Nine Hours, Nine Persons, Nine Doors
Escape-room puzzles and route flowchart are fully solvable
The Night of the Rabbit
A walkthrough trivialises it - puzzles have fixed solutions
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.