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

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

Optimization · Practiced Mastery
Backyard survival testing crafting optimisation with timing-based bug combat.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Grounded 2 leans Optimization (Practiced Mastery).
Grounded 2 leans a little harder on execution, though the gap is small.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Grounded 2
Dodging and perfect-blocking giant bugs takes real timing
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
Grounded 2
Insect AI follows mappable behaviour patterns
Grounded 2 leans a little harder on variance, though the gap is small.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Grounded 2
World discovery and resource spawns hide some information
Grounded 2 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
Grounded 2
Base building, armor builds and tech routing drive progress
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.