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 · Systems & Chaos
Skill-active survivors-like with curse stacking and boss-rush escalation.

Optimization · Pure Optimization
A colorful loot ARPG where theorycrafting builds beats anything your hands do.
Soulstone Survivors leans Optimization (Systems & Chaos); Torchlight II leans Optimization (Pure Optimization).
Soulstone Survivors leans a little harder on execution, though the gap is small.
Soulstone Survivors
Active skills and dodging beyond auto-attack.
Torchlight II
Faster combat asks for dodging and skill timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Soulstone Survivors
Scripted enemy waves.
Torchlight II
Enemies are scripted swarms, never adaptive
Soulstone Survivors leans a little harder on variance, though the gap is small.
Soulstone Survivors
Skill and curse drops swing builds.
Torchlight II
Loot rolls and random maps drive the chase
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Soulstone Survivors
Curses and build crafting reward planning.
Torchlight II
Skill trees and gear synergies decide character power
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.