Grimrock

You usually find a gold key nearby the gold locks.

How do you get to the green gem behind a grate in the same room?

Edit: Nevermind, found it.

To be more specific on the meteor shield:

It's right next to the Sewer Exit West in an alcove. When you take it,

I agree with Isaac, a Dark Souls like system where it saves when you quit in ironman would be much preferred. The point of ironman / save crystals only once is that you can't save-scum and have only one save, not that you aren't allowed to have a live outside of the game anymore. In normal ironmode ...

Since people use these threads for bug reports: When you cast the meteor spell on a monster that attacks you, some of the hits seem to hit yourself. At least with the spiders in crystal mines, I guess they occupy the square of the player while they are in their attack animation? Not sure if this is ...

Pretty sure enemies (at least some enemies) respawn after one in-game day has passed. Only in outside areas though.

As far as where to go next:

If you play on ironman, I'd suggest an alchemist so you get infinite potions, since you will need to heal wounds and other status effects.

I already knew about giving cheese to Ratlings, but after feeding my Insectoid Mage 2 of the spiky fruits she gained + Willpower.

Maybe there is a stat-growing food for each of the races?