As of 2015, Kongregate.com users' top-rated online games are "Bloons TD 5," "Kingdom Rush," "Freefall Tournament," "Sas: Zombie Assault 4" and "Kingdom Rush Frontiers." Independent game developers and large game studios upload free games to Kongregate.com and receive rewards for high ratings from players.
Kongregate.com allows users to sort games by rating, most-played and date of publication, and they can filter games by category such as puzzle, shooter, action, adventure and role-playing, and multiplayer. Users can pay for ad-free games, private chat, beta releases and other perks. All users earn badges, achievements and points that to redeem at retailers for rewards. Game developers can participate in rating or other social features.