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 · Pure Optimization
Remake of Gaiden with dual protagonists and explorable dungeons.

Optimization · Systems & Chaos
Navigating fixed horror puzzles and scripted scares that a walkthrough fully dissolves.
Fire Emblem Echoes: Shadows of Valentia leans Optimization (Pure Optimization); The Crooked Man leans Optimization (Systems & Chaos).
The Crooked Man leans a little harder on execution, though the gap is small.
Fire Emblem Echoes: Shadows of Valentia
Turn-based menus only
The Crooked Man
Light chase sequences; mostly walking and menu inputs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fire Emblem Echoes: Shadows of Valentia
Scripted enemies on both routes
The Crooked Man
Scripted pursuer and story events, no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fire Emblem Echoes: Shadows of Valentia
Hit RNG plus dungeon encounters
The Crooked Man
Unknown story routes and jump-scares until the script is learned
Fire Emblem Echoes: Shadows of Valentia leans a little harder on optimization, though the gap is small.
Fire Emblem Echoes: Shadows of Valentia
Dual-army routing and class promotions
The Crooked Man
Puzzle solutions and item routes are fixed and fully solvable
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.