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
Colonize Mars by stacking dome layouts and supply chains.

Optimization · Pure Optimization
Engineering a beaver colony's water and food systems to survive scheduled drought cycles at growing scale.
Surviving Mars leans Optimization (Pure Optimization); Timberborn 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.
Surviving Mars
pausable, no reflex
Timberborn
Construction and management require no physical precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Surviving Mars
no adversary
Timberborn
No adversary exists; droughts are scheduled, not adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Surviving Mars
disasters, sponsor traits
Timberborn
Map seed and drought timing carry moderate session-level randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Surviving Mars
dome layouts and supply chains
Timberborn
Water management, district planning, and beaver worker routing are the engineered core
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.