head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Anime-styled mech action game built around looting and outfitting your Arsenal.

Execution · Practiced Mastery
The original Souls game: scripted boss patterns you solve with builds, routes and disciplined execution.
Daemon X Machina leans Execution (Practiced Mastery); Demon's Souls leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Daemon X Machina
Aerial mech combat rewards aim and boost management
Demon's Souls
Stamina-timed dodges and parries punish sloppy hands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Daemon X Machina
Scripted AI Arsenals; light PvP mode
Demon's Souls
Invasions exist but bosses are scripted patterns.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Daemon X Machina
Loot drops add mild randomness
Demon's Souls
World tendency and upgrade drops add mild noise.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Daemon X Machina
Arsenal outfitting and body modification drive power
Demon's Souls
Builds, routes and learned movesets are 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.