[codelani]

Very interesting! Added. Thanks!

There are a lot of esolangs still to add. It's helpful to have people recommend noteworthy ones.

[nils-m-holm]

Maybe you want to add Klong (K family, http://t3x.org/klong/) -- not necessarily eso, but not exactly mainstream, either. :)

Then, T3X was invented in 1995. And Klong in 2015.

[codelani]

Very cool! I love to see new array languages. Added. Thank you.