Ages Of the Federation is a new series of total conversions to Sins Of A Solar Empire: Rebellion starting with "The Four Years War". The first mod in the series takes place between the Enterprise and Original series eras, focusing on the conflict between the early Federation and Klingon Empire. A Resurgent Romulan Star Empire, angry and still licking its wounds after its defeat to the federations waits in the shadows, ready to take advantage of a misstep by either the warring powers.
This version contains playable Federation and Klingon factions. More to come soon..ish. As always, unpack the contents into Documents - My Games - Ironclad Games - Sins Of A Solar Empire Rebellion - Mods 1.85. Overwrite any files it asks you to (this should be the enabledmods.txt). N.B; You should have one folder and one file to drop into mods-rebellion 1.85. One folder called AOTF_T4YW and the enabledmods.txt. If your unpack is names something other than these, then the unzipping process might have created a container folder. I'm sure you can work out how to deal with that.