Building comparison
head to head
Guild WarsvsPortal 2
Guild Wars asks more than Portal 2, and the gap is reads.
Guild Wars
Optimization · Pure Optimization
Instanced online RPG where deck-like eight-skill builds decide battles before they begin.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Guild Wars leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Guild WarsPortal 2
Axis by axis
Execution4 vs 3
Guild Wars leans a little harder on execution, though the gap is small.
Guild Wars
Interrupt timing and kiting in skirmishes
Portal 2
Portal placement requires some precision but timing is lenient.
Reads5 vs 0
Guild Wars leans clearly harder on reads.
Guild Wars
GvG and arena metagame against adapting humans
Portal 2
No opponent; puzzles are static.
Variance2 vs 0
Guild Wars leans clearly harder on variance.
Guild Wars
Modest drop and spawn randomness
Portal 2
Puzzles are deterministic with no randomness.
Optimization8 vs 9
Portal 2 leans a little harder on optimization, though the gap is small.
Guild Wars
Eight-skill build construction is the game's soul
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.