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
A turn-based tactics puzzle about chaining weapon transforms against bug waves.

Optimization · Pure Optimization
Colonize Mars by stacking dome layouts and supply chains.
Morphblade leans Optimization (Pure Optimization); Surviving Mars 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.
Morphblade
Turn-based movement removes any twitch demand
Surviving Mars
pausable, no reflex
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Morphblade
Bugs follow scripted behaviour, not modelling you
Surviving Mars
no adversary
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Morphblade
Enemy spawn waves have randomised composition
Surviving Mars
disasters, sponsor traits
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Morphblade
Planning movement to chain weapon transforms optimally is the puzzle
Surviving Mars
dome layouts and supply chains
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.