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
Beautiful 19th-century city-builder ruled by production ratios.

Optimization · Pure Optimization
A perfect-information tactics puzzle solved one turn at a time.
Anno 1800 leans Optimization (Pure Optimization); Into the Breach leans Optimization (Pure Optimization).
Anno 1800 leans a little harder on execution, though the gap is small.
Anno 1800
pausable, no twitch
Into the Breach
No mechanical inputs
Anno 1800 leans a little harder on reads, though the gap is small.
Anno 1800
AI scripted, not adaptive
Into the Breach
Enemy moves telegraphed fully each turn
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Anno 1800
minor trade fluctuations
Into the Breach
Light spawn and squad randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Anno 1800
supply chains and ratios are the game
Into the Breach
Pure puzzle - perfect-information chess each turn
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.