head to head
Destiny asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Execution · Practiced Mastery
A shared-world looter shooter mixing sharp FPS execution with an RNG loot treadmill and solvable raid puzzles.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Destiny leans Execution (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Destiny leans clearly harder on execution.
Destiny
FPS gunplay and raid mechanics demand real aim.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Destiny leans clearly harder on reads.
Destiny
Crucible PvP adds genuine human prediction.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Destiny leans clearly harder on variance.
Destiny
RNG loot drops famously gate progression.
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.
Destiny
Loadout meta and raid routes are solvable systems.
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.