head to head
vs
999: Nine Hours, Nine Persons, Nine DoorsvsReplica
999: Nine Hours, Nine Persons, Nine Doors leans Optimization (Systems & Chaos); Replica leans Variance (Systems & Chaos).
999: Nine Hours, Nine Persons, Nine DoorsReplica
Axis by axis
Execution0 vs 0
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance4 vs 5
Replica leans harder on variance: Passwords and incriminating clues are hidden until cross-referenced
Optimization6 vs 5
999: Nine Hours, Nine Persons, Nine Doors leans harder on optimization: Escape-room puzzles and route flowchart are fully solvable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.