Building comparison
head to head
Impossible CreaturesvsPortal 2
Impossible Creatures asks more than Portal 2, and the gap is reads.
Impossible Creatures
Optimization · Pure Optimization
RTS where you splice animals into custom armies before battle begins.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Impossible Creatures leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Impossible CreaturesPortal 2
Axis by axis
Execution4 vs 3
Impossible Creatures leans a little harder on execution, though the gap is small.
Impossible Creatures
Standard RTS micro and army control
Portal 2
Portal placement requires some precision but timing is lenient.
Reads5 vs 0
Impossible Creatures leans clearly harder on reads.
Impossible Creatures
Human opponents counter your creature picks
Portal 2
No opponent; puzzles are static.
Variance2 vs 0
Impossible Creatures leans clearly harder on variance.
Impossible Creatures
Scouting hidden enemy combinations
Portal 2
Puzzles are deterministic with no randomness.
Optimization8 vs 9
Portal 2 leans a little harder on optimization, though the gap is small.
Impossible Creatures
Creature-combining army design is deeply solvable
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.