head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, 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 soccer management sim about optimizing squad, finances and tactics over a career.
Civilization V leans Optimization (Pure Optimization); New Star Manager 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
New Star Manager
Menu and tap input, no physical performance demand
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
New Star Manager
AI opponents follow systems, not adaptive mind-modelling
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Civilization V
Random starts, barbarian spawns, and goody huts create hidden unknowns
New Star Manager
Match outcomes and events carry meaningful randomness
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
New Star Manager
Squad building, training and tactics are the solvable 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.