head to head
Middle-earth: Shadow of Mordor asks more than Grand Theft Auto: San Andreas, and the gap is variance.

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

Optimization · Practiced Mastery
Open-world action game where procedurally generated orc captains remember your encounters.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Middle-earth: Shadow of Mordor leans Optimization (Practiced Mastery).
Middle-earth: Shadow of Mordor leans a little harder on execution, though the gap is small.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Middle-earth: Shadow of Mordor
Counter-timing combat and stealth execution
Middle-earth: Shadow of Mordor leans a little harder on reads, though the gap is small.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Middle-earth: Shadow of Mordor
Nemesis orcs remember you but remain mappable scripts
Middle-earth: Shadow of Mordor leans clearly harder on variance.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Middle-earth: Shadow of Mordor
Procedural captains with hidden strengths and weaknesses
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Middle-earth: Shadow of Mordor
Intel gathering and exploiting known weaknesses solves fights
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.