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
A warm, classic JRPG adventure with deep alchemy crafting.

Optimization · Pure Optimization
Lane defense classic about managing a sun economy against shambling waves.
Dragon Quest VIII: Journey of the Cursed King leans Optimization (Pure Optimization); Plants vs. Zombies leans Optimization (Pure Optimization).
Plants vs. Zombies leans a little harder on execution, though the gap is small.
Dragon Quest VIII: Journey of the Cursed King
Turn-based menus, zero dexterity
Plants vs. Zombies
Clicking to plant, minimal pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Quest VIII: Journey of the Cursed King
Monsters act on fixed logic
Plants vs. Zombies
Zombie waves follow set compositions
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Quest VIII: Journey of the Cursed King
Battle RNG, drops, and casino luck
Plants vs. Zombies
Wave timing and lane pressure vary mildly
Plants vs. Zombies leans a little harder on optimization, though the gap is small.
Dragon Quest VIII: Journey of the Cursed King
Skill points, alchemy, and tension are optimizable
Plants vs. Zombies
Sun economy and lane setups are near-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.