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 post-nuclear RPG expanded in scope where tagged builds and Gifted-trait optimization dominate.

Optimization · Pure Optimization
An auto-battling deckbuilder about building a loop to defeat the Lich.
Fallout 2 leans Optimization (Pure Optimization); Loop Hero leans Optimization (Pure Optimization).
Fallout 2 leans a little harder on execution, though the gap is small.
Fallout 2
Turn-based AP system makes twitch entirely irrelevant
Loop Hero
Autobattler, almost no inputs.
Fallout 2 leans a little harder on reads, though the gap is small.
Fallout 2
All tribal and Enclave enemies run fixed scripted combat routines
Loop Hero
Enemies follow scripts.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout 2
Hidden special encounters and timed events create significant unknown-information space
Loop Hero
Card draws and loot drops randomize.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout 2
SPECIAL and skill tagging with Gifted trait produce well-known dominant build strategies
Loop Hero
Deck and tile placement reward deep optimization.
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.