In your User FAQ, you mention that wheel mice are not supported because there is no mouse driver support. This is not fully true, the CuteMouse driver defined a wheel API (check out https://github.com/FDOS/mouse/blob/master/wheelapi.txt) and supports wheel mice.
Regarding actual 80386 and NOFPU support, you can test using PCem / PCjs or other reasonably accurate emulators to verify that your project works. This would also help to implement Hercules support even if you don't have hardware yourself.
If you already support monochrome 640x350, you can easily support monochrome 640x480 as well (which works on any MCGA/VGA card even without VESA driver). The 16-color 640x480 resolution is a bit annoying to use, so I understand why you don't want to support it.
Your "Download" page does not specify the project license and refers to the software itself ("For the license, see Start / Information / License.txt"). I shouldn't have to run XCOM in order to know whether I am allowed to run it. (Just replace the text with a link to the license or the FAQ which contains the license already.)
For networking support, you can use Wattcp-32 or Trumpet's TSR (check out http://ftp.sunet.se/mirror/archive/ftp.sunet.se/pub/simtelnet/trumpet/tcp-abi/tcp201.spe for documentation). Note that you cannot use mTCP, as it is GPLv3 and linked into the application, therefore fundamentally incompatible with closed-source projects.
Regarding actual 80386 and NOFPU support, you can test using PCem / PCjs or other reasonably accurate emulators to verify that your project works. This would also help to implement Hercules support even if you don't have hardware yourself.
If you already support monochrome 640x350, you can easily support monochrome 640x480 as well (which works on any MCGA/VGA card even without VESA driver). The 16-color 640x480 resolution is a bit annoying to use, so I understand why you don't want to support it.
Your "Download" page does not specify the project license and refers to the software itself ("For the license, see Start / Information / License.txt"). I shouldn't have to run XCOM in order to know whether I am allowed to run it. (Just replace the text with a link to the license or the FAQ which contains the license already.)
For networking support, you can use Wattcp-32 or Trumpet's TSR (check out http://ftp.sunet.se/mirror/archive/ftp.sunet.se/pub/simtelnet/trumpet/tcp-abi/tcp201.spe for documentation). Note that you cannot use mTCP, as it is GPLv3 and linked into the application, therefore fundamentally incompatible with closed-source projects.