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 narrative RPG that tests knowledge of its philosophical systems and dialogue trees more than any combat skill.

Optimization · Pure Optimization
A fragmented-timeline mystery that asks players to reconstruct causality across escape-room puzzles.
Planescape: Torment leans Optimization (Pure Optimization); Zero Escape: Zero Time Dilemma leans Optimization (Pure Optimization).
Planescape: Torment leans a little harder on execution, though the gap is small.
Planescape: Torment
Combat is deemphasised; the game is built to be avoided or trivial
Zero Escape: Zero Time Dilemma
No physical demands in escape rooms or choice screens
Planescape: Torment leans a little harder on reads, though the gap is small.
Planescape: Torment
NPCs are scripted personalities; no adaptive opponent exists
Zero Escape: Zero Time Dilemma
Fragment-based story has no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Planescape: Torment
Some dialogue outcomes and item discoveries are hidden until explored
Zero Escape: Zero Time Dilemma
Non-linear fragment order and hidden outcomes obscure the path
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Planescape: Torment
Stat allocation, dialogue routing and companion management reward system mastery
Zero Escape: Zero Time Dilemma
Connecting all fragments to reach the true timeline is a logic 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.