Building comparison
head to head
Aven ColonyvsPortal 2
Neither is simply harder - they are hard in different places. Aven Colony demands more variance; Portal 2 demands more execution.
Aven Colony
Optimization · Pure Optimization
Expanding a self-sufficient alien colony by solving atmosphere, power, and resource chains under scripted threats.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Aven Colony leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Aven ColonyPortal 2
Axis by axis
Execution1 vs 3
Portal 2 leans clearly harder on execution.
Aven Colony
City management UI has no twitch dimension
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.
Aven Colony
Alien threats are scripted with no player-modelling behaviour
Portal 2
No opponent; puzzles are static.
Variance5 vs 0
Aven Colony leans clearly harder on variance.
Aven Colony
Landing site resources and alien attack timing carry moderate RNG
Portal 2
Puzzles are deterministic with no randomness.
Optimization8 vs 9
Portal 2 leans a little harder on optimization, though the gap is small.
Aven Colony
Colony expansion, air quality chains, and tech routing are the solvable core
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.