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 turn-based tactics game testing positioning and squad management under RNG.

Optimization · Pure Optimization
Gunpowder-era Total War blending empire management with line battles.
Arma Tactics leans Optimization (Pure Optimization); Empire: Total War leans Optimization (Pure Optimization).
Empire: Total War leans a little harder on execution, though the gap is small.
Arma Tactics
Turn-based - no twitch demands
Empire: Total War
Real-time battle micro is modest
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Arma Tactics
Enemy AI scripted; some randomized objectives but no adaptive mind
Empire: Total War
Multiplayer line-battle feints exist
Arma Tactics leans a little harder on variance, though the gap is small.
Arma Tactics
Hit chance and randomized missions add real randomness
Empire: Total War
Campaign AI and battle dice noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Arma Tactics
Positioning, cover and weapon use are the core tactics
Empire: Total War
Campaign economy and line-infantry tactics are mappable
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.