I never had a need for a world bigger than Medium. Even my custom medium world produces quite a big save (120MB) and takes quite a while every time I load or save the game.
How'd you manage to need 120Mb? I've got a .31.19 game folder with saves on an adjacent computer (for some reason, I don't actually play DF at work, so not sure what that's doing there) with, for some reason, five worlds generated upon it[1], and their sizes are 7.57Mb, 24.1Mb, 33.8Mb, 5.13Mb and 4.5Mb. Not sure what sizes they each are, but that'll include max-sized regions, probably both the 24Mb and 33Mb versions. In
total that's smaller than your 120Mb; although including the 'seasonal backup' folders for the two worlds that I've apparently played a little in fort mode
does shove the total up to 255Mb.
Incidentally, taking that final total away from the game folder's size gives 24Mb of base files. Not that many people appreciate this kind of thing, these days, but I think that's a nice compact set of executables and (mostly ASCII and totally uncompressed!) definition files, given the complexity of the game behind it. Now... how might I start to get it to work in an Arduino environment with custom physical interfaces?
![Wink ;)](http://97.107.128.126/smf/Smileys/aaron/wink.gif)
[1] In answer to a prior question, I don't actually usually generate one per version, but a new one
per version, and little migration at all, these days. I may copy a pre-embark fort for simultaneous (non-interactive fortress and adventuring mode, but that's straight copying, not regenerating.