Building comparison
head to head
Children of a Dead EarthvsPortal
Neither is simply harder - they are hard in different places. Children of a Dead Earth demands more optimization; Portal demands more execution.
Children of a Dead Earth
Optimization · Pure Optimization
A hard sci-fi spacecraft combat simulator using real physics.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Children of a Dead Earth leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Children of a Dead EarthPortal
Axis by axis
Execution2 vs 4
Portal leans clearly harder on execution.
Children of a Dead Earth
minimal twitch demand, orbital mechanics focus
Portal
Portal placement timing modest.
Reads1 vs 0
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
Portal
No adversary modeling player.
Variance1 vs 0
Children of a Dead Earth leans a little harder on variance, though the gap is small.
Children of a Dead Earth
deterministic physics, near-zero randomness
Portal
Deterministic chambers; no randomness.
Optimization10 vs 8
Children of a Dead Earth leans clearly harder on optimization.
Children of a Dead Earth
realistic orbital combat engineering is fully solvable
Portal
Pure puzzle-solving optimization.
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.