While I was fumbling around, trying to come up with vague logo ideas, Luke (largely unaware of what I was doing) mentioned something about a crest. Based on that offhand comment, I started in a completely different direction from the one I was initially taking. I didn't really know what I was doing or what I was going for - just trying to combine various elements (snakes, suns, stars, laurels, etc.) into something that would fit the game. Here are a few things that resulted from brainstorming, along with a somewhat more finished one-colour logo.
The latin phrase (courtesy of Luke again), "Omnes Quod Mitet Aurun Est" supposedly means "All that Glitters is Gold".