head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Variance · Systems & Chaos
Tests mapping unknown level rules that converge to walkthroughs once learned.

Optimization · Systems & Chaos
A co-op party puzzle where one player defuses a bomb others describe from a manual.
Escape the Backrooms leans Variance (Systems & Chaos); Keep Talking and Nobody Explodes leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Escape the Backrooms
Sneaking and sprinting from entities is undemanding
Keep Talking and Nobody Explodes
Defusing under a timer punishes fumbling
Escape the Backrooms leans a little harder on reads, though the gap is small.
Escape the Backrooms
Entities are scripted or random, not adaptive minds
Keep Talking and Nobody Explodes
The bomb never adapts to you
Escape the Backrooms leans a little harder on variance, though the gap is small.
Escape the Backrooms
Unknown level rules and entity behaviour dominate first runs
Keep Talking and Nobody Explodes
Random module combinations every bomb
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Escape the Backrooms
Each level's escape converges to a known walkthrough
Keep Talking and Nobody Explodes
Mastering the manual turns chaos into procedure
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.