Kingdom Rush Frontiers

Kingdom Rush Frontiers, also marketed as Kingdom Rush Frontiers - Tower Defense (sometimes shorted to TD), is a video game that was developed by  for iOS, iPadOS, macOS, Android, Linux, and Windows. It is a sequel to , a Flash Player game that was ported to support the iPad in 2011.

Gameplay
The player's goal is to defend exotic lands from adversaries ranging from dragons to man-eating plants.

Releases
Kingdom Rush Frontiers was first released for iOS 4.3 in June 2013, with an Android version later in the year. Version 1.6 was released for iOS 7 through the Apple App Store on December 3, 2014. It became available for Mac and Windows PCs through Steam on July 25, 2016, with a Linux version released in the following month.

Apple Arcade version
A variant for Apple Arcade was released on November 12, 2021 under the title Kingdom Rush Frontiers TD+, with no ads and unlocked options included. An RPG sequel, Legends of Kingdom Rush, was released as an Apple Arcade exclusive in June 2021.

System requirements
As of January 2022, the minimum requirements are:
 * iOS 11 or later (13.0 for Apple Arcade)
 * iPadOS 13 or later (for Apple Arcade)
 * Mac OS X 10.6.6 or later (11.0 for Apple Arcade)