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
An immersive-sim shooter where combining plasmids and weapons into optimal builds is the deep layer.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
BioShock 2 Remastered leans Optimization (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
BioShock 2 Remastered leans a little harder on execution, though the gap is small.
BioShock 2 Remastered
aim and plasmid timing matter
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2 Remastered
splicers are scripted, no adaptation
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.
BioShock 2 Remastered
loot and enemy spawns vary
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.
BioShock 2 Remastered
plasmid and build synergies are solvable
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.