Apps similar to Genesis Plus GX include RetroArch, which is free and open source. Other options are Kega Fusion, RetroX, RetriX and BlastEm. Game Emulators like Genesis Plus GX are a crowded field, with more than 25 alternatives for Windows, Linux, Mac, Android and the web.
DebuGens is a modified version of Gens by Fuzzbuzz. It offers dumps for the ROM, RAM and YM2612 channels for debugging purposes, along with Tile Layer Pro palette creation and layer toggling options. It also allows for sprite and layer toggling which is good for getting screen...
"jEnesis" is a Sega MegaDrive/Genesis Emulator entirely written in Java.
Features
Everything written completely from scratch Custom Java Motorola 68000 CPU core VDP emulation with all DMA modes Horizontal & Vertical Interrupts Support for PAL.
