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

Optimization · Pure Optimization
A zombie survival crafter where horde-night base design carries the game.

Optimization · Pure Optimization
A match-three game testing efficient board clearing to fund city-building.
7 Days to Die leans Optimization (Pure Optimization); Cradle of Rome leans Optimization (Pure Optimization).
7 Days to Die leans a little harder on execution, though the gap is small.
7 Days to Die
Aim and movement during horde nights matter.
Cradle of Rome
Light click-speed under timers, never decisive
7 Days to Die leans a little harder on reads, though the gap is small.
7 Days to Die
Zombie AI is largely scripted with minor pathing adaptation.
Cradle of Rome
Solo match-three, no opponent to model
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
7 Days to Die
World generation and loot rolls randomized.
Cradle of Rome
Board tile drops are random per move
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
7 Days to Die
Base design and horde-night kill funnels dominate.
Cradle of Rome
Planning matches to collect resources builds the city
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.