One possible thing (I won't call it an error, because I simply am not that knowledgeable) that I see is rivers. In Eden and the Dwarf Lands there are rivers that run parallel to mountain ranges. On the south-western continent, you have a river that starts out in a mountain lake in Mayan land, flows down to the plains, then either jumps the mountains or tunnels through to go to Egyptian Land. I'm a little non-plussed by that. I'm used to rivers that star in the mountains, then flow away from the mountains toward the sea.
Now, if your back-story accounts for these things, then all is well: frankly, it's your map, and it's for (seemingly) a fantasy video game, so while the geography may not be what one would expect, it can be accounted for with a good back-story.
Since you are making a video-game map, you don't have the same amount of space that one does on regular world maps. So because of the lack of room, there are trade-offs. However, while we can be as realistic or unrealistic as we wish, the one thing that (IMO) trumps realism EVERRY SINGLE TIME is the story. If changing the map as I have suggested would mess up the story, DON'T DO IT.
Sorry--I get little emphatic from time to time.