If you're looking for one of the best "overall packages" in terms of Fortnite or PUBG alternatives for mobile, this is it. It's not just a great battle royale game, but it's a great game overall.
With Radiation Island you can't partake in the crazy multiplayer battles until you complete the single-player campaign mode first. So if you're not interested in putting in the time, skip this one. That said, we don't recommend passing it up, or else you'll miss out.
As expected, you get dropped on an old deserted "Radiation Island" and you'll have to craft and gather supplies to stay alive. They have food, shelters, guns, and you can even make your own guns or weapons. Either way, this game is loads of fun. You'll pay $2.99 but that gets you a regular game and a battle royale adventure in one.