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

Optimization · Pure Optimization
The original post-apocalyptic demon-fusing dungeon crawler where preparation and fusion knowledge decide survival.

Optimization · Pure Optimization
An auto-attacker where picking the right weapon evolutions wins by itself.
Shin Megami Tensei leans Optimization (Pure Optimization); Vampire Survivors 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.
Shin Megami Tensei
First-person menu battles; trivial inputs.
Vampire Survivors
Movement is trivial; no aim or precision required.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Shin Megami Tensei
Demon negotiation is random, not adaptive.
Vampire Survivors
Enemies follow fixed spawn scripts; no adaptive opponent.
Shin Megami Tensei leans a little harder on variance, though the gap is small.
Shin Megami Tensei
Negotiation rolls, ambushes, and moon-phase RNG bite hard.
Vampire Survivors
Level-up offerings and pickup drops are randomized.
Vampire Survivors leans a little harder on optimization, though the gap is small.
Shin Megami Tensei
Fusion charts, alignment routes, and weakness mapping are solvable.
Vampire Survivors
Evolution paths and weapon combinations fully solve the run.
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.