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Wren
Wren is a compact scripting language and single-library virtual machine with classes, fibers, modules, and a C API.
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Why use it
Custom engines can host gameplay scripts while controlling runtime size and host interfaces.
Where it fits
Find engines, frameworks, code libraries, version control, and production automation.
scriptingengine-integration
What to check
Maintenance and ecosystem scale are limited, so teams need to supply debugging, hot reload, and sandbox policies.