LaunchBox - LaunchBox is a portable, box-art-based games database and launcher for DOSBox, emulators, arcade cabinets, and PC Games. Download it free!

Colonist.io - Free online alternative to the popular board game Settlers of Catan. Play single or multiplayer, with expansions, custom maps, and more. No download or sign up required!

GameEx - GameEx is considered to be the most powerful and feature rich front-end for MAME, GameBase, Daphne, PC Games and all command line based game emulators, along with being a complete Home Theatre PC solution.

Catan Universe - Play anytime, anywhere - against all Catan players worldwide.

GamersGate - Buy and download games instantly for PC and Mac.

Ka-tan - A shared board to play Catan? on with friends