head to head
Neither is simply harder - they are hard in different places. Medieval Dynasty demands more variance; Portal demands more execution.

Optimization · Pure Optimization
Optimising a medieval village's growth through seasonal farming, crafting, and dynasty reputation systems.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Medieval Dynasty leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Medieval Dynasty
Hunting and combat are simple with minimal twitch demands
Portal
Portal placement timing modest.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Medieval Dynasty
NPC villagers and animals follow scripted routines only
Portal
No adversary modeling player.
Medieval Dynasty leans clearly harder on variance.
Medieval Dynasty
Random NPC approval events and weather affect progression
Portal
Deterministic chambers; no randomness.
Portal leans a little harder on optimization, though the gap is small.
Medieval Dynasty
Dynasty reputation, villager assignment, and seasonal farming are systematic
Portal
Pure puzzle-solving optimization.
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.