head to head
Spaceland: Sci-Fi Indie Tactics asks more than Portal 2, and the gap is variance.

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

Optimization · Pure Optimization
A turn-based tactics game testing positioning and squad optimization against aliens.
Portal 2 leans Optimization (Pure Optimization); Spaceland: Sci-Fi Indie Tactics leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Portal 2
Portal placement requires some precision but timing is lenient.
Spaceland: Sci-Fi Indie Tactics
Turn-based commands need no twitch input
Spaceland: Sci-Fi Indie Tactics leans clearly harder on reads.
Portal 2
No opponent; puzzles are static.
Spaceland: Sci-Fi Indie Tactics
Alien enemies follow scripted AI, not adapting to you
Spaceland: Sci-Fi Indie Tactics leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Spaceland: Sci-Fi Indie Tactics
Hit chances and fog of war add measured randomness
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Spaceland: Sci-Fi Indie Tactics
Positioning, ability use and squad planning win battles
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.