A Python Interpreter written in Rust
General Purpose Engine for Graphic Adventures.
Tool support for the Z formal notation
Interpreter and compiler for the Seed7 programming language.
The interpreter for BrainF
A Pikalang interpreter written in C
Simple ⇒ Object-Oriented ⇒ Functional
A COW interpreter written in C
Advanced TECO dialect and interactive screen editor based on Scintilla
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
A POSIX-compliant AWK interpreter written in Go, with CSV support
The Saxon XSLT and XQuery processor, developed by Saxonica
eXist-db is a feature rich Open Source native XML database
A BASIC interpreter and compiler with graphics.
emscripten'ed MRI
IDLE Extensions
Embeddable scripting runtime for live behavior, AI, and automation.
Children's learning programming language Karel the Robot in 3D
A Java VM for ARDUINO and other micros using the leJOS runtime.
A Java implementation of XProc: An XML Pipeline Language
Learning programming language for kids