head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Optimization · Practiced Mastery
A back-to-basics stealth assassination game built on learnable guard patterns.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Assassin's Creed Mirage leans Optimization (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Mirage
Stealth timing and parkour need modest precision.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Assassin's Creed Mirage leans a little harder on reads, though the gap is small.
Assassin's Creed Mirage
Guard AI fully scripted and mappable.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Grand Theft Auto: San Andreas leans a little harder on variance, though the gap is small.
Assassin's Creed Mirage
Patrols and tools mostly deterministic.
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.
Assassin's Creed Mirage
Infiltration routes and tools reward planning.
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.