squirrel3 3.1-5 (amd64 binary) in ubuntu bionic

 Squirrel is a high-level imperative, object-oriented programming
 language, designed to be a lightweight scripting language that fits
 in the size, memory bandwidth, and real-time requirements of
 applications like video games.
 .
 This package contains the Squirrel command line interpreter and
 bytecode compiler.