Welcome back! It's been a while. And yes, commutes are evil. I barely have one, and it's still evil.
Yup, saw Steins;Gate (both original and 0). As for getting more of it, both series were adapted from games (specifically visual novels). So if there's another game, there might be another anime.
The Chaos;Head, Chaos;Child, Robotics;Notes and (sort of) Occultic;Nine anime series were adapted from games created by the same company, but it's generally agreed that they're not as good. Occultic;Nine probably "felt" the closest to Steins;Gate for me (which wasn't very close), but in all fairness, I haven't watched either Chaos;Head or the original Steins;Gate in a very long time.