Other functional language koans:

* https://github.com/functional-koans/clojure-koans

* https://github.com/HaskVan/HaskellKoans

* https://github.com/rubbish/scala-koans

Other interpreted language koans:

* https://github.com/bittersweetryan/ColdFusion-Koans

* https://github.com/matyb/java-koans

* https://github.com/liammclennan/JavaScript-Koans

* https://github.com/midpeter444/mybatis-koans (In Java, but for the library MyBatis 3)

* https://github.com/kikito/lua_missions

* https://github.com/forcedotcom/PerlKoans

* https://github.com/TorontoPHPSoftwareCraftsmanship/PHPUnit-K...

* https://github.com/gregmalcolm/python_koans

* https://github.com/DASpringate/Rkoans

* https://github.com/neo/ruby_koans

* https://github.com/brysztofor/koans (Ruby on Rails koans)

Other language koans:

* https://github.com/marcinbunsch/bash_koans

* https://github.com/paytonrules/PointerKoan (C pointers)

* https://github.com/CoryFoy/DotNetKoans

* https://github.com/torbjoernk/CppKoans

* https://github.com/liammclennan/coffeescript-koans

* https://github.com/patrickgombert/erlang-koans

* https://github.com/VictorDenisov/go_koans

* https://github.com/cdarwin/go-koans

* https://github.com/cjudd/groovy_koans

* https://github.com/joecannatti/Objective-C-Koans

Other programming or technical koans:

* http://stevelosh.com/blog/2013/04/git-koans/

* https://github.com/chicagoruby/MongoDB_Koans

* http://blog.sanctum.geek.nz/vim-koans/

(For any aspiring koan writers, Arc, Rust, and Scheme lack koans. And PHP's and R's are pretty sparse.)