I seem to have a problem installing this rather awesome looking mod. (Want to try it so badly). I extracted it into the right folder (the mods one) etc. but when I try and run it from Advanced/Load a Mod, it will come up with the first loading screen then the thing crashes before I can get any further! I disabled CustomAssets in the Caveman2Cosmos ini. file and it is patched to the latest version, also tried playing about with the resolution incase that was causing an issue. Any ideas would be much appreciated, thanks.
When you say "patched to the latest version", do you mean BtS? That needs to be at version 3.19. Make sure it is via the choice on BtS's Advanced menu that tells you this sort of thing. Patching via the in-game patching option frequently fails (this is probably not relevant for the Steam version, which is updated via Steam), so if you used that you could be wrong about whether or not it is patched to 3.19. It is frequently necessary to patch manually by downloading the patch file and running it.
Some of the details of your computer are very important for determining if you can run C2C. The most important factor is how much memory it has.
Well, there is another important factor: whether or not it is Windows. C2C is not compatible with running directly on a Mac. You should be able to run it via a virtual Windows install or probably via Wine or some similar thing, but not directly.
The size of the map you are trying to use is also important, but only after the game actually loads and you start a game.
You didn't provide any info about your computer, so here is some general info.
It is probably still be possible to play C2C with 2 GB of memory on 32-bit windows. It is more difficult, and perhaps impossible, if your graphics card (or motherboard or CPU integrated graphics) also uses system memory instead of having its own when you have only 2GB to start with. The R2R (Rocks 2 Rockets) mod is essentially a trimmed down version of C2C that works better on systems with this amount of memory, so you might try that if this is your situation.
If you are using a computer with less than 2GB of memory there is really no hope of running C2C at all. Even R2R probably won't work on less than 1.5 GB, but it might be possible to play on small maps at 1.5 GB.
The ideal system for C2C has a 64-bit version of windows and anything over 4 GB of memory with a separate graphics card with 1 GB or more memory of its own (although 512 MB is probably enough as I have never seen it go over 350 MB when I've monitored it, but I have never really played C2C with a map bigger than Large and have never gotten much past the Medieval era). Even then, you can not expect to play the largest 3 or 4 map sizes, all of which are bigger than the normal largest Huge size, without activating the viewport feature.
Which reminds me: the first post in this thread should probably indicate the minimum possible configuration (i.e. 2 GB of memory, assuming it is still playable on such a system) and the recommended configuration (i.e. more than 4 GB of memory on a 64-bit version of Windows).