Brandy is an interpreter for BBC Basic
Basic and Easy to use CSharp IDE with compiler.
Basic interpreter in ANSI C
a code generator for any programming language
A 100% Java Warren Abstract Machine implementation.
QtBasic: a simple basic interpreter with Qt influences.
Cross-platform reimplementation of AMOS BASIC (runtime)
AMOS BASIC reimplementation in Java
MequaScript is a BASIC-style interpreter with a hybrid syntax
Small programming langage easy to embed
Vilegust is a basic-like compiler/interpreter.
Workflow Engine - Basic interpreter