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 · Systems & Chaos
A minimalist real-time tactics roguelite about defending tiny procedural islands.

Optimization · Pure Optimization
A zombie survival sim where long-term planning outweighs moment-to-moment skill.
Bad North leans Optimization (Systems & Chaos); Project Zomboid leans Optimization (Pure Optimization).
Project Zomboid leans a little harder on execution, though the gap is small.
Bad North
Real-time orders need only light micro.
Project Zomboid
Combat is deliberate; precision matters but is slow.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bad North
Viking waves random, not adaptive.
Project Zomboid
Zombies follow scripted behaviour; no adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bad North
Procedural islands and enemy compositions.
Project Zomboid
Loot spawns and zombie distributions randomized.
Project Zomboid leans a little harder on optimization, though the gap is small.
Bad North
Unit positioning and upgrade choices solvable.
Project Zomboid
Skill grinding, base setup, and routing define survival.
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.