head to head
System Shock (1994) asks more than Middle-earth: Shadow of Mordor, and the gap is optimization.

Optimization · Practiced Mastery
Open-world action game where procedurally generated orc captains remember your encounters.

Optimization · Practiced Mastery
A complex immersive sim that rewards meticulous resource management and environmental puzzle solving over raw shooting skill.
Middle-earth: Shadow of Mordor leans Optimization (Practiced Mastery); System Shock (1994) leans Optimization (Practiced Mastery).
System Shock (1994) leans a little harder on execution, though the gap is small.
Middle-earth: Shadow of Mordor
Counter-timing combat and stealth execution
System Shock (1994)
Moderate aim demands with stamina and leaning mechanics as execution layer
Middle-earth: Shadow of Mordor leans a little harder on reads, though the gap is small.
Middle-earth: Shadow of Mordor
Nemesis orcs remember you but remain mappable scripts
System Shock (1994)
All enemies are scripted cyborgs and mutants with no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Middle-earth: Shadow of Mordor
Procedural captains with hidden strengths and weaknesses
System Shock (1994)
SHODAN camera placement and event triggers are opaque until mapped
System Shock (1994) leans clearly harder on optimization.
Middle-earth: Shadow of Mordor
Intel gathering and exploiting known weaknesses solves fights
System Shock (1994)
Hacking, resource management, and log routing form deep solvable systems
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.