For the purpose of fun, one place well worth a look is the Esoteric Languages wiki. You might also want to try some of the tasks on programming challenge websites such as Sphere Online Judge in several of the supported languages, to get a better feel for what you enjoy. That particular site supports a wide variety of languages, including some esoteric ones, and even has specific challenges that require an esoteric language such as brainfuck - or at least it did; I haven't been there in a few years, and I can't right now see how to search for challenges with particular types of requirement.

Another direction to go that might tie in with the day job would be SNOBOL, which was the first language to introduce 'pattern matching' as a first-class concept.

In reply to Re: Recommendations for fun programming languages ? by hv
in thread Recommendations for fun programming languages ? by rnaeye

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