A free WotLK 3.3.5a realm with 2x experience, every raid from Naxxramas to Icecrown fully scripted, and live arena seasons. No cash shop, no pay-to-win.
SingleWoW is a free World of Warcraft: Wrath of the Lich King 3.3.5a private server built for playing with bots. Recruit a full party or a 25-man raid of bots, level up at 3x XP and keep growing forever with Paragon levels.
Free 2006 RuneScape private server: the original 317 client plus raids, Zulrah, Vorkath and God Wars. 5x XP, no pay-to-win. Play in your browser, no download.