head to head
Neither is simply harder - they are hard in different places. Portal 2 demands more execution; Tropico 4 demands more variance.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
Juggling rival faction demands and island economics to keep your dictator in power.
Portal 2 leans Optimization (Pure Optimization); Tropico 4 leans Optimization (Pure Optimization).
Portal 2 leans clearly harder on execution.
Portal 2
Portal placement requires some precision but timing is lenient.
Tropico 4
Decree-clicking 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 2
No opponent; puzzles are static.
Tropico 4
Faction AI follows fixed ideological scripts, not player modeling
Tropico 4 leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Tropico 4
Random events and election outcomes inject meaningful uncertainty
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Tropico 4
Balancing factions, treasury, and production chains is the core loop
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.