Building comparison
head to head
PlanetbasevsPortal 2
Neither is simply harder - they are hard in different places. Planetbase demands more variance; Portal 2 demands more execution.
Planetbase
Optimization · Pure Optimization
Engineering self-sustaining closed-loop life support systems on a hostile planet against scripted environmental events.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Planetbase leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
PlanetbasePortal 2
Axis by axis
Execution1 vs 3
Portal 2 leans clearly harder on execution.
Planetbase
Building placement is unhurried and menu-driven throughout
Portal 2
Portal placement requires some precision but timing is lenient.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Planetbase
No adversarial AI; threats are scripted event types
Portal 2
No opponent; puzzles are static.
Variance4 vs 0
Planetbase leans clearly harder on variance.
Planetbase
Solar storm timing and resource availability add hidden pressure
Portal 2
Puzzles are deterministic with no randomness.
Optimization8 vs 9
Portal 2 leans a little harder on optimization, though the gap is small.
Planetbase
Power and oxygen loops are tightly engineered optimization puzzles
Portal 2
Solving the puzzle's logic IS the entire 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.