head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
Classic Roman city builder dominated by mastering its walker-based logistics.

Optimization · Pure Optimization
A god game where four giants terraform a 2D planet and chain resource synergies to grow villages.
Caesar III leans Optimization (Pure Optimization); Reus 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.
Caesar III
Mouse-driven building, no pressure
Reus
Slow giant movement; timing pressure is minimal
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Caesar III
Invasions are scheduled, not adaptive
Reus
Human villages follow predictable greed rules
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Caesar III
Minor walker pathing unpredictability
Reus
Village ambitions inject mild randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Caesar III
Housing blocks and walker logistics are solvable systems
Reus
Resource symbiosis chains are a deep solvable system
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.