I see that the giant earth map crash is happening for everyone. Is there any way to prevent it? I notice that it always happens after I end my turn.
Yes, try the huge map if the giant is not working for you.
If you experiment crashes with the Giant earth from this mod, another giant size map will make the game crash the same way.
Solution if you wan't to play the giant map (providing your computer allows you to start a game with it) is either to play fast games, or to use mods that will lower the number of units/cities/improvement/workers.
Having my attention on other mods, I've not played a long game on the giant earth since a long time, but I was able to reach turns 200+ on my computer. After that, random crashes and reloading time make it difficult to go on.
Making a gameplay mod to help the use of the giant map is still on my todo list. With a lot of other stuffs for my mods. (All may be linked together in the end...)
Guys, I play the giant variant totally fine. Every once in a while I have a crash, but they're fairly rare, and I save often so I can always load from save if it crashes/freezes.
What I've found, to reduce crashing, is that lowering the auto-save frequency can help. I dropped it to every 25 turns.
Also, I ALWAYS enable "new random seed" now. I used to have issues with a game crashing at the SAME turn over and over, no matter how many times I loaded from save. I worked it out that for some reason, the worker units often mess with the game. If you're diligent enough, you can find the culprit worker (lot of experimentation and potentially more crashes) by disabling one at a time or even deleting it.
But new random seed makes this issue happen WAY less. It still might happen, but now you know how to fix it.
This crashing bug is clearly a game engine problem - I've had it happen on vanilla maps too.
Also, if you have a weak computer, playing the giant variant is not recommended. I'm running on an i7 920 @ 4.0GHz, 12GB DDR3 1691 RAM, and recently a GeForce GTX 680 SC+ (previously a Radeon HD 5870). And even I have to wait some time between turns and endure a crash out of the blue.
But it's certainly manageable, and I play with everything maxed out at 1920x1200, with 45 city states set at minimum distances (only TSL), and large resource deposits.
Makes for some seriously AMAZING games. I've finished games as India, Korea, Rome, and the Aztecs so far, and gotten most of the way through with Germany, Songhai, Japan, Egypt, and Arabia.