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 · Practiced Mastery
A wave-defense game testing reaction speed and upgrade-economy decisions.

Optimization · Pure Optimization
A gentle turn-based system easily solved by build and gear choices.
Defend Your Castle leans Optimization (Practiced Mastery); South Park: The Stick of Truth leans Optimization (Pure Optimization).
Defend Your Castle leans a little harder on execution, though the gap is small.
Defend Your Castle
Flicking enemies fast matters as waves intensify
South Park: The Stick of Truth
Timed attack and block prompts add light input demands
Defend Your Castle leans a little harder on reads, though the gap is small.
Defend Your Castle
Enemies follow scripted wave patterns
South Park: The Stick of Truth
Enemies follow fixed turn-based scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Defend Your Castle
Enemy spawns randomized but bounded
South Park: The Stick of Truth
Minor damage rolls; encounters are otherwise fixed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Defend Your Castle
Spending points on upgrades and units is the strategy
South Park: The Stick of Truth
Build, gear and ability choices comfortably solve every fight
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.