This is a list of languages that I consider to be notable. It's mainly intended for myself, so it is quite subjective. However, I have tried to follow these criteria:
- Personally I think that the languages on the "good language list" should be implemented. I realize that some very good languages have not yet been implemented, although visitors should be able to try out these "good languages".
- The language should have a decent specification (either external or on the wiki); this means that it is correct both in language/presentation and in content. It should also be complete.
- The language should not be under development, it should be more than a concept.
- The language may not be convertible to an earlier language by replacing lexemes from one language with lexemes from the other language. Note, this applies only when there is a "one by one" replacement.
- The language must contain a new or unique concept. This is of course hard the objectively determine, but let us assume that making a brainfuck version with a tape of complex numbers is not unique enough.
- It is preferred (but not absolutely required) if the languages are of historical importance to the esoteric programming language community (eg. brainfuck).
- Something notable (eg. an interpreter, a prime sieve, a quine that is not the empty set of instructions...) has been implemented in the language. This does not include the "Hello, world" program, nor does it include a square root finder in a language that has a built-in operator to do this. This highly depends on the language. For example, a cat may be hard to write in one language, whereas it might be very trivial in another.
- My own languages are not necessarily on this list.
- I tend to add only the first of a large amount of languages, eg. I will add Gammaplex but not Omegaplex, Brainfuck but not Brainfuck++, etc.
This list is obviously far from finished.