I've been recently been thinking about Arkane Studio's Prey which is a immersive sim, with a pretty good rogue like dlc, that probably has one of the strongest hooks of any game I've played. If you liked Halflife, System Shock, or Deus Ex it's definitely worth a play.
Are there any titles that might not have been commercially successful that you feel everyone should give a shot?
From my perspective producing art can be pivotal in impacting change, good or bad by swaying public sentiment. I'm not claiming that they can pull out the old quill and ink and pen up some statues, but that voicing distaste is the first step in enacting change.
Voicing thought alone doesn't impact change, but neither does enacting laws, you also require enforcement. But laws enforced without public support don't last forever.
On the last paragraph I think we had a disconnect, I had assumed you said devs in reference to an entire studio. But it seems you were strictly speaking about the individual of that occupation in a larger studio.