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

Variance · Systems & Chaos
A match-three puzzle game themed around Disney's Frozen.

Optimization · Systems & Chaos
A co-op party puzzle where one player defuses a bomb others describe from a manual.
Frozen Free Fall 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.
Frozen Free Fall
simple swipe/tap matching inputs
Keep Talking and Nobody Explodes
Defusing under a timer punishes fumbling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Frozen Free Fall
no opponents, solo puzzle matching
Keep Talking and Nobody Explodes
The bomb never adapts to you
Frozen Free Fall leans a little harder on variance, though the gap is small.
Frozen Free Fall
randomized piece drops each board
Keep Talking and Nobody Explodes
Random module combinations every bomb
Keep Talking and Nobody Explodes leans a little harder on optimization, though the gap is small.
Frozen Free Fall
pattern recognition and match planning
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.