head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, 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
A 40K turn-based RPG where conviction stacking and ability chaining produce dominant optimization floors.
Fallout 2 leans Optimization (Pure Optimization); Warhammer 40,000: Rogue Trader 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.
Fallout 2
Turn-based AP system makes twitch entirely irrelevant
Warhammer 40,000: Rogue Trader
Turn-based grid combat removes all real-time pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout 2
All tribal and Enclave enemies run fixed scripted combat routines
Warhammer 40,000: Rogue Trader
Xenos and heretics run fixed scripted AI routines without modelling players
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
Warhammer 40,000: Rogue Trader
Hidden voidship encounter outcomes and momentum RNG create unknowns
Warhammer 40,000: Rogue Trader leans a little harder on optimization, though the gap is small.
Fallout 2
SPECIAL and skill tagging with Gifted trait produce well-known dominant build strategies
Warhammer 40,000: Rogue Trader
Arch-Militant conviction stacking and navigator ability chains reach broken optimization ceilings
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.