MacOS software

Amiberry

Amiga emulator

Blitz

Performance analysis software

CurseForge

Download and manage your addons and mods

Dolphin Dev

Emulator to play GameCube and Wii games

Phoenix Firestorm viewer for Second Life

Viewer for accessing Virtual Worlds

gcs

Character sheet editor for the GURPS Fourth Edition roleplaying game

Cockatrice

Virtual tabletop for multiplayer card games

Gearsystem

Sega Master System, Game Gear and SG-1000 emulator

Gearboy

Game Boy and Game Boy Color emulator

GDevelop

Open-source, cross-platform game engine designed to be used by everyone

Dusklight

Reverse-engineered reimplementation of Twilight Princess

EVE Online

Launcher for the space MMO game EVE Online

Epic Games Launcher

Launcher for *Epic Games* games

Cro-Mag Rally

Prehistoric-themed 3D racing game from Pangea Software

GB Studio

Drag and drop retro game creator

Gargoyle

IO layer for interactive fiction players

FlightGear

Flight simulator

Bugdom 2

Bug-themed 3D action/adventure game sequel from Pangea Software

Aleph One

Open-source continuation of Bungie's Marathon 2 game engine

DOSBox Staging

DOS game emulator

Doomsday Engine

Enhanced source port of Doom, Heretic, and Hexen

Final Fantasy XIV

Story-driven massively multiplayer online role-playing game

Boosteroid

Cloud gaming service

Dolphin

Emulator to play GameCube and Wii games

Badlion Client

Minecraft launcher

Bit Slicer

Universal game trainer

Candy Crisis

Tile matching puzzle/action game

Clone Hero

Guitar Hero clone