head to head
Hill Climb Racing 2 asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.

Execution · Practiced Mastery
Balancing a physics vehicle over terrain while upgrade math sets your ceiling.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Hill Climb Racing 2 leans Execution (Practiced Mastery).
Hill Climb Racing 2 leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Hill Climb Racing 2
Throttle-and-brake balance over physics terrain decides every run
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Hill Climb Racing 2
Async opponents are ghosts, nothing to predict live
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Hill Climb Racing 2
Procedural terrain segments add mild run-to-run noise
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Hill Climb Racing 2
Vehicle choice, tuning and upgrade paths set the ceiling
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.