As of May 2015, some of the most popular games at Armor Games are "The King of Towers", "Wartune" and "Gemcraft Chasing Shadows." Each game has at least one million players.
"The King of Towers" is a tower defense game that is somewhat similar to "Warcraft" and "Heroes Rush." "Wartune" is a fantasy MMO that combines elements of the strategy and RPG genres.
"Gemcraft Chasing Shadows" is the second chapter of the Gemcraft series. It is a tower defense game with a fantasy theme. Other popular games on the site include "Heroes of the Banner" and "Dawn of the Dragons."