head to head
Neither is simply harder - they are hard in different places. Elven Legacy demands more variance; Portal 2 demands more execution.

Optimization · Pure Optimization
A turn-based fantasy tactics game emphasizing hex-grid battle strategy.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Elven Legacy leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans clearly harder on execution.
Elven Legacy
no reflex demand, turn-based unit orders
Portal 2
Portal placement requires some precision but timing is lenient.
Elven Legacy leans a little harder on reads, though the gap is small.
Elven Legacy
AI opponents mostly scripted, minor prediction
Portal 2
No opponent; puzzles are static.
Elven Legacy leans clearly harder on variance.
Elven Legacy
combat resolution dice-like randomness
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans a little harder on optimization, though the gap is small.
Elven Legacy
tactical unit positioning and hero builds
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.