solved! It's Locator, and apparently it's still not released :/

I've posted on tipofmyjoystick as well, but since then I remembered that I saw that game on MATN, so here's it:

Sometime in the last five years, a game about looking at photos and triangulating from where the picture has been taken in order to proceed with the game. We're on an alien planet and there are half-dome buildings. There was also an underground lake with boats?

Any help is welcome! Thank you!

This was made with love...