head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Optimization · Pure Optimization
Solvable type-matchup planning across two regions of fixed trainers.

Optimization · Pure Optimization
A fragmented-timeline mystery that asks players to reconstruct causality across escape-room puzzles.
Pokémon Silver Version leans Optimization (Pure Optimization); Zero Escape: Zero Time Dilemma leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Pokémon Silver Version
Turn-based menus need no dexterity
Zero Escape: Zero Time Dilemma
No physical demands in escape rooms or choice screens
Pokémon Silver Version leans a little harder on reads, though the gap is small.
Pokémon Silver Version
Scripted trainers never adapt; link battles are a niche exception
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.
Pokémon Silver Version
Encounters, crits and catch rolls are bounded RNG
Zero Escape: Zero Time Dilemma
Non-linear fragment order and hidden outcomes obscure the path
Pokémon Silver Version leans a little harder on optimization, though the gap is small.
Pokémon Silver Version
Type coverage and team composition solve both regions
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.