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
Optimizing game development decisions around hidden genre-topic match formulas to maximize review scores and revenue.

Optimization · Pure Optimization
An economy and layout optimization puzzle about keeping a small simulated city solvent.
Game Dev Tycoon 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.
Game Dev Tycoon
All choices are menu clicks with no physical ceiling
SimCity
Pause-friendly building removes any physical test
SimCity leans a little harder on reads, though the gap is small.
Game Dev Tycoon
No adaptive human competitor to model
SimCity
Region multiplayer is cooperative, not adversarial prediction
Game Dev Tycoon leans a little harder on variance, though the gap is small.
Game Dev Tycoon
Review scores and trend timing have meaningful 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.
Game Dev Tycoon
Genre-topic-audience matching and R&D investment are learnable formulas
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.