potrace - Open source program that transforms bitmaps into vector graphics.
G2A - Enjoy the vast offer of Steam, Origin, Uplay, Battle.net, GOG, PSN and XBOX CD-Keys at the most attractive prices on the market. Don’t overpay – buy cheap on G2A.COM!
Vector Magic - Easily convert JPG, PNG, BMP, GIF bitmap images to SVG, EPS, PDF, AI, DXF vector images with real full-color tracing, online or using the desktop app!
Green Man Gaming - A digital distributor for video games.
Autotracer.org - Free online image vectorizer
GOG.com - DRM-free game store, selling both new and old titles. No clients required.