head to head
Total War: Rome II asks more than Unturned, and the gap is optimization.

Optimization · Pure Optimization
Maintaining senate favor and province chains while executing real-time cohort tactics.

Optimization · Practiced Mastery
A blocky free-to-play zombie survival sandbox mixing scavenging, basebuilding, and PvP.
Total War: Rome II leans Optimization (Pure Optimization); Unturned leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Total War: Rome II
Cohort line management and flanking cavalry demand real-time micro
Unturned
Gunfights and driving reward aim and control
Unturned leans a little harder on reads, though the gap is small.
Total War: Rome II
AI generals follow scripted behaviors without adapting to the player
Unturned
Human raiders and ambushes on PvP servers
Unturned leans a little harder on variance, though the gap is small.
Total War: Rome II
Random political events and dynastic loyalty shifts add campaign variance
Unturned
Loot spawns and unknown player positions
Total War: Rome II leans clearly harder on optimization.
Total War: Rome II
Senate favor management and province chains form a solvable campaign system
Unturned
Base building, loot routes, and crafting economy
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.