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

Optimization · Pure Optimization
A baseball management sim testing roster-building and statistical optimization over long seasons.

Optimization · Pure Optimization
A grand strategy 4X where empire optimization carries you through random crises.
Out of the Park Baseball 20 leans Optimization (Pure Optimization); Stellaris leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Out of the Park Baseball 20
No physical input; you manage, not play
Stellaris
Real-time pausable with no input precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Out of the Park Baseball 20
AI GMs don't deeply model and adapt to you
Stellaris
AI is scripted; multiplayer adds modest adaptation.
Out of the Park Baseball 20 leans a little harder on variance, though the gap is small.
Out of the Park Baseball 20
Player performance and injuries carry real randomness
Stellaris
Galaxy gen, anomalies, and crises vary widely.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Out of the Park Baseball 20
Roster construction, scouting, and strategy are the entire game
Stellaris
Empire builds, fleet comps, and economy dominate.
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.