Why Adopt Me! and Growtopia are similar

Online game with large numbers of players, often hundreds or thousands, on the same server. MMOs usually feature a huge, persistent open world, although some games differ. Wikipedia

Line of home video game consoles developed by Microsoft. Successor to Xbox 360 and the third base console in the Xbox series of video game consoles. Wikipedia

Video game in which more than one person can play in the same game environment at the same time, either locally or online over the internet (e.g. World of Warcraft, Call Of Duty). Multiplayer games usually require players to share the resources of a single game system or use networking technology to play together over a greater distance; players may compete against one or more human contestants, work cooperatively with a human partner to achieve a common goal, or supervise other players' activity. Wikipedia

Mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. Wikipedia

Group of several proprietary graphical operating system families, all of which are developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. Wikipedia