I am currently working on a revival of AcidSphinx' Stone Ages mod, (original discussion thread: http://forums.civfanatics.com/showthread.php?t=160483 ) I have a "proof of concept" version that works fine on my Mac. I am not able to test it on a PC and previous iterations had a number of PC-only bugs. Sam Yeager graciously fixed bugs that prevented the game from starting up (thanks a million, Sam!
) If you have a Mac this should work fine! If you have a PC download it and let me know if it works. One guy from France (Naokaukodem, thanks for your help too) can start the game but sees no text. I have not yet had any feedback from somebody with an English-language version. Link to the current file is in my sig.
What's currently there:
You start off as a single tribe with access to one of the basic food technologies (gathering, hunting, or fishing). Terrain provides almost no net resources unless improved so you want to settle near improved territory and improve resources right away. Gatherers can improve plant food resources, Hunters can improve animal resources, and Fisher can improve river and lakesides, all for +1 food. Other food path techs are available but they're well down the tech tree.
Early on you want to get Paleolithic Fibers. Once you have that, the fiber resources appear, you can research specific techs for specific fibers, and once you have those techs all basic workers can build a +1 resource improvement.
"Commerce" (which needs a namechange) is not generated by most tiles, but by particular improvements and specialists. You can get these via Fire, Awareness of the Seasons, and Cave Painting.
Exploration is very dangerous! Those animals are nasty!
Limitations:
Art is minimal (AcidSphinx did some but I'm no artist and there will be no more art unless an artist joins on the project). Basically all units use the warrior animation. Only the startup part of the game is there - you'll run out the tech tree pretty fast and there is no currently acheivable victory condition (except probably domination or conquest on a Pangaea - not tested). I'm still working on the balance between the food paths, and the pacing of development.
Future Plans
I'm planning to do this as a limited-era mod - probably equivalent to about two eras. The two phases will probably roughly correspond to 1) exploring your neighborhood and finding what's there and 2) putting together what's available into forming a civilization (like how Middle Easterners domestication wheat and goats while the Incas domesticated potatos and guinea pigs). You'll win by either being the first to civilize (this will work like the space race) or leaving the Mysteries of the Ancients (ie, a cultural win). There are a lot of additional ideas from the original thread.

What's currently there:
You start off as a single tribe with access to one of the basic food technologies (gathering, hunting, or fishing). Terrain provides almost no net resources unless improved so you want to settle near improved territory and improve resources right away. Gatherers can improve plant food resources, Hunters can improve animal resources, and Fisher can improve river and lakesides, all for +1 food. Other food path techs are available but they're well down the tech tree.
Early on you want to get Paleolithic Fibers. Once you have that, the fiber resources appear, you can research specific techs for specific fibers, and once you have those techs all basic workers can build a +1 resource improvement.
"Commerce" (which needs a namechange) is not generated by most tiles, but by particular improvements and specialists. You can get these via Fire, Awareness of the Seasons, and Cave Painting.
Exploration is very dangerous! Those animals are nasty!
Limitations:
Art is minimal (AcidSphinx did some but I'm no artist and there will be no more art unless an artist joins on the project). Basically all units use the warrior animation. Only the startup part of the game is there - you'll run out the tech tree pretty fast and there is no currently acheivable victory condition (except probably domination or conquest on a Pangaea - not tested). I'm still working on the balance between the food paths, and the pacing of development.
Future Plans
I'm planning to do this as a limited-era mod - probably equivalent to about two eras. The two phases will probably roughly correspond to 1) exploring your neighborhood and finding what's there and 2) putting together what's available into forming a civilization (like how Middle Easterners domestication wheat and goats while the Incas domesticated potatos and guinea pigs). You'll win by either being the first to civilize (this will work like the space race) or leaving the Mysteries of the Ancients (ie, a cultural win). There are a lot of additional ideas from the original thread.