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

Execution · Practiced Mastery
The original Souls game: scripted boss patterns you solve with builds, routes and disciplined execution.

Execution · Practiced Mastery
A Platinum-made cel-shaded brawler where the Autobots fight Megatron with stylish combo combat.
Demon's Souls leans Execution (Practiced Mastery); Transformers: Devastation 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.
Demon's Souls
Stamina-timed dodges and parries punish sloppy hands.
Transformers: Devastation
Platinum dodge-offset timing drives the combat
Demon's Souls leans a little harder on reads, though the gap is small.
Demon's Souls
Invasions exist but bosses are scripted patterns.
Transformers: Devastation
Decepticons run learnable scripted patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Demon's Souls
World tendency and upgrade drops add mild noise.
Transformers: Devastation
Random weapon drops shape loadouts
Demon's Souls leans a little harder on optimization, though the gap is small.
Demon's Souls
Builds, routes and learned movesets are fully solvable.
Transformers: Devastation
Weapon synthesis, ability builds, boss moveset mastery
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.