Gelide is described as 'configurable frontend which let you manage any kind of emulated system (PC, console, arcade, etc) letting you to catalog and launch any game from any existing emulator under GNU/Linux' and is a Game Emulator in the Gaming Software category. There are more than 10 alternatives to Gelide for Windows, Linux, Android and Mac. The best alternative is LaunchBox, which is free. Other great apps like Gelide are HyperSpin (Free), Dig - Emulator Front-End (Freemium), GameEx (Freemium) and AdvanceMenu (Free, Open Source).
HyperSpin is an animated arcade frontend for Windows for use on Home Arcade Machines. HyperSpin allows you to create custom menu systems to run most executables with that arcade look and feel. HyperSpin takes a more artwork oriented approach to creating menu's.
GameEx is a graphical DirectX based front-end for MAME, GameBase, Daphne, PC Games, and all command line based game emulators, along with being a complete Home Theatre PC solution or plug in for Windows Media Center.
MaLa is a multi emulator front-end designed for all 32bit Windows operating systems (I have had reports it work fine on 64 bit) . It supports the Windows command line version of MAME with XML ROM info (> 0.84), PC Games and all command line based emulators.