Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Steel Bank Common Lisp - Steel Bank Common Lisp (SBCL) is a high performance Common Lisp compiler.
Rust - A safe, concurrent, practical language
CMU Common Lisp - CMUCL is a high-performance, free Common Lisp implementation.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
CLISP - CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible.