HEROES UNITE is an idle and merge game developed by SUPERJOY Inc. that is available for free on the Android platform. The game is a perfect fit for those who are busy but still want to play a game.

In HEROES UNITE, you can merge two heroes into one, which allows you to increase their power without any limits. The game also features an auto-merge system, which means you only need to touch and buy. You don't have to drag anything at all.

HEROES UNITE offers various battle contents such as Dragon's Lair, Demon's Castle, and Tower of Challenge, which provide players with a lot of challenges. The game is a real idle and merge game that keeps your heroes active even when you're sleeping.

Overall, HEROES UNITE is a great game for those who want to play a game without having to put too much effort into it. The game is available for free, and you can download it from the Google Play Store.