@duglor said in Apple 2 gs Emulators?:

Is GSPlus the only emulator right now that is capable of emulating the apple 2 gs?

No, there are several - see https://emulation.gametechwiki.com/index.php/Apple_IIGS_emulators.

If no, are there any lr-XXXX emulators for it? Does lr-Mess work with it???

Yes, upstream MAME is included in RetroPie and can emulate (among other systems) the Apple2GS. There's no out-of-the-box configuration for it, so you'll have to add your own system for Apple2GS and the emulator command for the system.

@duglor said in Apple2 GSPlus Emulator- Help with creating .gsp config text files:

I dont think there is a control disk feature that will let you eject and load disks which is sort of crucial for many of the games.

You can eject and change, use the "tab" key to go into the mame-gui.