head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

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

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Defend Your Castle leans Optimization (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Defend Your Castle
Flicking enemies fast matters as waves intensify
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Defend Your Castle leans a little harder on reads, though the gap is small.
Defend Your Castle
Enemies follow scripted wave patterns
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
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
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
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
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
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.