Your zone to play free online First Person Shooter Games no download at Round Games. First-person shooter (FPS) is a video game genre centered around gun and other weapon based combat in a first-person perspective. The genre shares common traits with other shooter games, which in turn makes it fall under the heading action game. We have collected some of the best free online First Person Shooter Games to play now without download on Round Games. These games include browser games for both your computer and mobile devices. So enjoy and have fun.