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Free game engine for development of desktop, mobile, and web games
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Cross-platform game engine in Rust
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The HTML5 Creation Engine
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PyCAPGE - Python Classic Adventure Point and Click Game Engine
Vivid3D is an open-source 3D engine with powerful 2D UI.
Engo is an open-source 2D game engine written in Go
Data-oriented and data-driven game engine written in Rust
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KlayGE is a cross-platform open source game engine
A cross-platform 2D game engine