Prolog is probably less of a general-purpose language, in the sense that writing things such as games are probably not a very suitable goal for it. But for any

Prolog is probably less of a general-purpose language, in the sense that writing things such as games are probably not a very suitable goal for it. But for any problem involving the exploration of a solution space, prolog is absolutely stellar and actually quite fast, and even faster to write: solvers, irregular data processing, symbolic reasoning... It also lends itself quite well to "I just want to query a database" apps, including websites. Have a look at the "power of prolog" YouTube channel if you are interested.