Quote: "But, I want to know if there is a paying customer who has actually made a fully functional game using fpsc ONLY!!"
I've finished 2 projects by now.... full working ones even, with FPSC only.
The first one is a 6 level 3D Teaching Enviroment with mini games in it, more like puzzles. It was created for a non-for-profit organization, so I'll doubt you'll ever see it.
The second one I just finished. It's a game and has 14 levels and 1 game explanation level and 2 security levels (no, I'm not going to tell what those are, you need to wait until the release). The game runs fine on the computers I've tested it on. The actually release date isn't set, but I do hope to give more details next week.
Btw.... the game isn't just a stock game. All wall/floors/ceilings/landscapes are newly created by me. New weapons, new enemies, new items. Used some of the stock items also, but most of the stuff is new..... even the scripts involved.