head to head
Tiny Tina's Wonderlands asks more than Diablo III, and the gap is execution.

Optimization · Pure Optimization
A pure loot-and-build treadmill where set-bonus optimisation and Rift pushing define performance.

Optimization · Practiced Mastery
Fantasy looter shooter with class hybrids.
Diablo III leans Optimization (Pure Optimization); Tiny Tina's Wonderlands leans Optimization (Practiced Mastery).
Tiny Tina's Wonderlands leans clearly harder on execution.
Diablo III
Greater Rift pushing has minor mechanical demand in builds
Tiny Tina's Wonderlands
Gunplay similar to Borderlands 3
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
Tiny Tina's Wonderlands
Scripted fantasy enemies, no reads
Tiny Tina's Wonderlands leans a little harder on variance, though the gap is small.
Diablo III
Primal Ancient drops and set dungeon RNG drive the grind
Tiny Tina's Wonderlands
Loot rolls and Chaos Chamber RNG
Diablo III leans a little harder on optimization, though the gap is small.
Diablo III
Set bonuses and paragon levelling are almost entirely solvable
Tiny Tina's Wonderlands
Dual classes and spell builds deep
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.