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

Optimization · Pure Optimization
A survival-crafting loop where resource budgeting matters more than combat skill.

Optimization · Pure Optimization
A third-person tower defense about funneling orc hordes into gleefully lethal trap corridors.
Metal Gear Survive leans Optimization (Pure Optimization); Orcs Must Die! 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.
Metal Gear Survive
Spear-and-fence combat is deliberate, not twitchy
Orcs Must Die!
Active shooting supplements the traps
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Survive
Wanderers are mindless scripted zombies
Orcs Must Die!
Orc waves follow fixed paths
Metal Gear Survive leans a little harder on variance, though the gap is small.
Metal Gear Survive
Dust exploration hides resources until scouted
Orcs Must Die!
Minor wave composition randomness
Orcs Must Die! leans a little harder on optimization, though the gap is small.
Metal Gear Survive
Base-building, crafting chains and resource budgeting carry survival
Orcs Must Die!
Trap placement and kill-corridor economics are the game
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.