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

Optimization · Pure Optimization
Patient combinatorial planning to engineer rare tile formations against drop randomness.

Optimization · Pure Optimization
Open-world detective work testing evidence deduction without hand-holding.
Hexic HD leans Optimization (Pure Optimization); The Sinking City leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Hexic HD
Unhurried rotations - minimal dexterity needed
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.
Hexic HD
Solo board with no adversary
The Sinking City
Monsters and citizens follow fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hexic HD
New tile colors drop semi-randomly into plans
The Sinking City
Case clues are hidden information until investigated
Hexic HD leans a little harder on optimization, though the gap is small.
Hexic HD
Engineering starflowers and black pearls is deep planning
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.