Goosebumps Horror Town is a mobile game quite similar to Family Guy the Quest for Stuff or The Simpsons Tapped out. You build a city based on the books and show. Each character has small activities they can do to gather coins and items to help level you up and unlock new buildings and unlock new characters. The story is, of course, made for the game and of course it rather nice for fans of the series. You can play the game entirely for free, tho to be honest many of the more notable characters, Slappy, for example, require premium currency. You get some of this playing the game of course but it does help to use real money.
The game also relies mainly on making you wait for actions to complete so you can use it as a nice way to waste some time, but all in all if you aren’t willing to spend some money to get a few of the classic characters you won’t ever get them and this sadly is the way for most mobile games like this. Fans of the series will enjoy it, but for most people, it is just kind of there. Best wishes and may the gaming gods bring you glory.