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 d20 Star Wars RPG where Force power selection and alignment routing define clear optimal paths.

Optimization · Pure Optimization
Steampunk colony defense against scripted zombie waves.
Knights of the Old Republic leans Optimization (Pure Optimization); They Are Billions leans Optimization (Pure Optimization).
They Are Billions leans a little harder on execution, though the gap is small.
Knights of the Old Republic
Pseudo-turn-based d20 combat removes all twitch; timing aids exist but minor
They Are Billions
some pause-based defense placement
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Knights of the Old Republic
All enemies follow scripted AI behaviour trees without player modelling
They Are Billions
zombie AI not adaptive
Knights of the Old Republic leans a little harder on variance, though the gap is small.
Knights of the Old Republic
Loot rolls and pazaak draws provide hidden information layers
They Are Billions
map gen, swarm timing
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Knights of the Old Republic
Force power selection, feat prerequisites and light/dark routing are systematically solvable
They Are Billions
economy and wall placement solvable
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.