GOG needs to get a hold of Inca, by Coktel Vision.

Listen to the theme song, it's glorious:

https://www.youtube.com/watch?v=TqgZFiUrVDY

these lyrics speak to me man:
"We keep on flying into the night,
INCA PEOPLE LOOKING FOR A PLACE TO GO!!!"
fucking christ man, this is legendary

Yes, more Mesoamerican stuff is always a plus.

I would have no problem if they managed to get all the Coktel Vision games (well, my wallet may have one...).

There's something experimental about a lot of games from the 80s and 90s which I find appealing - sometimes with pretty big budgets too (for the era) - not indie (in the modern sense) at all. The artistic side of things can be pretty wild.
Not that you can't find experimental games today, but things are usually way more streamlined (interface/controls etc. probably also due to the preponderance of commercial off-the-shelf game engines) and hence a certain sense of mystery is harder to come by. (Then there's the problem with visibility in today's indie scene - overwhelming amount of new titles.)