head to head
Bardbarian asks more than Portal, and the gap is variance.

Optimization · Pure Optimization
A tower-defense hybrid about summoning units and upgrading to survive waves.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Bardbarian leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Bardbarian
Movement dodging matters but isn't the lead
Portal
Portal placement timing modest.
Bardbarian leans a little harder on reads, though the gap is small.
Bardbarian
Enemy waves are scripted, not adaptive
Portal
No adversary modeling player.
Bardbarian leans clearly harder on variance.
Bardbarian
Wave composition and drops vary somewhat
Portal
Deterministic chambers; no randomness.
Portal leans a little harder on optimization, though the gap is small.
Bardbarian
Summoning units and upgrade choices win waves
Portal
Pure puzzle-solving optimization.
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.