head to head
Children of a Dead Earth asks more than Cities: Skylines, and the gap is execution.

Optimization · Pure Optimization
A hard sci-fi spacecraft combat simulator using real physics.

Optimization · Pure Optimization
A sandbox city builder that is pure traffic and zoning optimization.
Children of a Dead Earth leans Optimization (Pure Optimization); Cities: Skylines leans Optimization (Pure Optimization).
Children of a Dead Earth leans clearly harder on execution.
Children of a Dead Earth
minimal twitch demand, orbital mechanics focus
Cities: Skylines
No reflex demands at all.
Children of a Dead Earth leans a little harder on reads, though the gap is small.
Children of a Dead Earth
AI opponents follow physics, minimal adaptation
Cities: Skylines
No adaptive opponent exists in the sandbox.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Children of a Dead Earth
deterministic physics, near-zero randomness
Cities: Skylines
Minor disaster events if enabled.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Children of a Dead Earth
realistic orbital combat engineering is fully solvable
Cities: Skylines
Traffic flow, zoning, and budgets are fully solvable.
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.