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
Deduce hidden words and manage letter resources through a dungeon of wordplay.

Optimization · Pure Optimization
Open-world detective work testing evidence deduction without hand-holding.
Cryptmaster leans Optimization (Systems & Chaos); The Sinking City leans Optimization (Pure Optimization).
Cryptmaster leans a little harder on execution, though the gap is small.
Cryptmaster
Typing words quickly under combat pressure matters somewhat
The Sinking City
Clunky combat is deliberately undemanding
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cryptmaster
The Cryptmaster narrates a script, not an adapting mind
The Sinking City
Monsters and citizens follow fixed scripts
Cryptmaster leans a little harder on variance, though the gap is small.
Cryptmaster
Hidden letters and unknown answers drive the guessing
The Sinking City
Case clues are hidden information until investigated
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cryptmaster
Vocabulary deduction and ability management are the solvable core
The Sinking City
Cross-referencing evidence and city archives is the deduction core
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.