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

Optimization · Pure Optimization
The co-op sequel where two players engineer overlapping trap gauntlets against orc waves.

Optimization · Pure Optimization
Time-loop Zelda where mastering everyone's three-day schedule is the real puzzle.
Orcs Must Die! 2 leans Optimization (Pure Optimization); The Legend of Zelda: Majora's Mask 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.
Orcs Must Die! 2
Co-op shooting and trap triggering
The Legend of Zelda: Majora's Mask
Standard Zelda combat demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Orcs Must Die! 2
Scripted wave pathing
The Legend of Zelda: Majora's Mask
NPCs run fixed clockwork schedules
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Orcs Must Die! 2
Endless mode shuffles compositions slightly
The Legend of Zelda: Majora's Mask
Schedules hidden until observed, then fully mappable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Orcs Must Die! 2
Upgrade spirit economy and trap synergies dominate
The Legend of Zelda: Majora's Mask
Three-day time loop rewards ruthless scheduling and routing
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.