head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Optimization · Pure Optimization
Optimizing city placement, social policies, and victory routing under randomized map unknowns.

Optimization · Pure Optimization
A turn-based squad tactics game about positioning marines against hidden aliens.
Civilization V leans Optimization (Pure Optimization); Incubation: Time Is Running Out 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.
Civilization V
UI actions need no precision; speed is not a factor
Incubation: Time Is Running Out
Turn-based, no aiming or timing skill needed
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Civilization V
AI follows scripted personalities, not genuine player modelling
Incubation: Time Is Running Out
Alien AI is scripted, ambush-driven not adaptive
Civilization V leans a little harder on variance, though the gap is small.
Civilization V
Random starts, barbarian spawns, and goody huts create hidden unknowns
Incubation: Time Is Running Out
Hidden enemies around corners create real uncertainty
Civilization V leans a little harder on optimization, though the gap is small.
Civilization V
Hex placement, social policies, and victory routing are fully solvable
Incubation: Time Is Running Out
Squad positioning and tactical planning win the missions
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.