The "demo" contains the first mission you fly off the Lexington in WC4, recreated in the Freespace engine. The second mission is an original design, and contains some very strange dialogue between some Kilrathi pilots. Sadly we ran out of time to play so there may well be more surprises in store, but we'll leave those for you to find. You can download the WC Saga April Fools joke demo (104MB!) here. The download is so big because it contains the original Freespace 2 demo which is required to run the mod, and also a WC Saga trailer. Don't forget to read the readme.txt file contained within for installation instructions.