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 · Pure Optimization
A gravity puzzle about calculating launch angles for stable satellite orbits.

Optimization · Pure Optimization
An economy and layout optimization puzzle about keeping a small simulated city solvent.
0rbitalis leans Optimization (Pure Optimization); SimCity 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.
0rbitalis
One launch input - no twitch skill
SimCity
Pause-friendly building removes any physical test
SimCity leans a little harder on reads, though the gap is small.
0rbitalis
Solo - no opponent to predict
SimCity
Region multiplayer is cooperative, not adversarial prediction
SimCity leans a little harder on variance, though the gap is small.
0rbitalis
Deterministic gravity simulation, no randomness
SimCity
Disasters and agent simulation quirks add mild randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
0rbitalis
Calculating stable orbit trajectories is the entire puzzle
SimCity
Zoning, traffic flow and specialisation economies are the whole game
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.