Re:TI 99/4A Emulators? (Score 1)

There are lots of TI emulators, though not as many as there are for other platforms. A place to start looking for anything TI-related is at http://99er.hispeed.com. There's also TI-99/4A support in the multi-emulator MESS, at http://mess.emuverse.com.

You do need the system ROMs to run the emulator and the cartridge ROMs to play the games. There's PC software to do the dumps, and I'm sure that somewhere out there you can find already-dumped ROMS, but I have no idea where.