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

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.

Optimization · Pure Optimization
Patience-driven crop scheduling and token economics in a browser farm.
Portal leans Optimization (Pure Optimization); Sunflower Land leans Optimization (Pure Optimization).
Portal leans clearly harder on execution.
Portal
Portal placement timing modest.
Sunflower Land
Clicking crops requires no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Portal
No adversary modeling player.
Sunflower Land
No adaptive opponent in farming loops
Sunflower Land leans clearly harder on variance.
Portal
Deterministic chambers; no randomness.
Sunflower Land
Market prices and seasonal events add modest unknowns
Portal leans clearly harder on optimization.
Portal
Pure puzzle-solving optimization.
Sunflower Land
Crop timing, resource chains and trade 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.