OK, here is how I do it. It is a complete hack but it works. 



0. You must have the paid version of FPSC Classic, which is able to build standalone games.

1. Start FPSC Classic, go the buttons row right under the menus, find the button "Move Down a Layer" and hit it several times, until you get to Level or Layer 0 (there is a small annotation at the bottom left end of the screen which tells oyu which level you are in).

2. Build your level, save it as (for example) my001.fpm .

3. Got menu File/Build Game. Fix the following options.

3.1 In level settings: Map Name --> my001.fpm

3.2 In textures: choose what you want an dyour computer can handle.

3.3 In build settings: my001.exe.

3.4 Hit "Build Game Executable"

4. After this is done, with File Explorer go to (for example) c:\Program Files\FPS Creator\MyGames\my001\files\levelbank. You will see in ithere a file level1.zip. Unzip it into c:\Program Files\FPSCR1009\files\entitybank\My001 (it is a new folder). To unzip you need the password; it is mypassword.

5. Now go to c:\Program Files\FPS Creator\MyGames\my001\files\texturebank. You will see several subfolders, each of which contains texture files. Copy all of these (for each subfolder) into c:\Program Files\FPSCR1009\files\entitybank\My001 .

6. Next, copy from c:\Program Files\FPSCR1009\files\entitybank\Buildings the following files into c:\Program Files\FPSCR1009\files\entitybank\My001 :

6.1 Sandstone Structure (1).bmp and rename to universe.bmp 

6.2 Sandstone Structure (1).fpe and rename to universe.fpe

7. Now open universe.fpe with a text editor and 

7.1 change the line "desc = Sandstone Structure (1)" to "desc = universe

7.2 change the line "model = sandstone structure (1).X" to "universe.dbo"

8. You are good to go. Start FPSCR and "add a new entity". You will see that you have a folder named My001, which contains the universe. The little bmp picture is that of sandstone structure but, if you select it and place it on the map, it will be the level you designed previously.

9.1 Sneakiness: You must place the Player Marker (Green Arrow) somewhere in your map. If you place it outside the FPSCC level, make sure you had built in an entrance (open space) in the level, or else you cannot enter it.

9.2 Alternative sneakiness. I am more interested in indoors games, so I will never want to leave the designed level and I do not build entrances in my levels. So then I have to make sure that, when I place the Player Marker it is inside the level. To do this , I place it ON TOP of the level and then I select it and use the Position gizmo to LOWER it into the level.



Hope this helped.



PS: crap! the forum editor for some reason kills my back slashes. I hope you will figure out where they must be located in the file paths I included above.