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 pure loot-and-build treadmill where set-bonus optimisation and Rift pushing define performance.

Optimization · Pure Optimization
A squad-based post-apocalyptic tactics game where AP efficiency and burst-fire builds determine mission success.
Diablo III leans Optimization (Pure Optimization); Fallout Tactics: Brotherhood of Steel leans Optimization (Pure Optimization).
Diablo III leans a little harder on execution, though the gap is small.
Diablo III
Greater Rift pushing has minor mechanical demand in builds
Fallout Tactics: Brotherhood of Steel
Real-time optional combat mode adds positioning pressure over pure turn-based
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo III
No meaningful adaptive opponent; co-op is cooperative
Fallout Tactics: Brotherhood of Steel
All enemy squads run fixed scripted patrol and engagement routines
Diablo III leans a little harder on variance, though the gap is small.
Diablo III
Primal Ancient drops and set dungeon RNG drive the grind
Fallout Tactics: Brotherhood of Steel
Enemy squad compositions and map layouts are hidden on first approach
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Diablo III
Set bonuses and paragon levelling are almost entirely solvable
Fallout Tactics: Brotherhood of Steel
Squad AP optimization and burst-fire perk stacking define dominant strategies
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.