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# Introduction

The Stellar Game Engine (abbreviated “SGE”, pronounced as “Sage”) is a free 2-D game engine. The purpose of the SGE is to make game development easier, which allows more rapid development by experienced game developers and also helps less experienced game developers learn how to develop games.

Official implementations of the SGE are free software (where “free” refers to freedom, not price; see the Free Software Definition for more information), and the documentation has been (to the extent legally possible) released to the public domain via the CC0 license.

Even if it isn’t required of you, we encourage you to release your games’ code under a free software license, such as the GNU General Public License, the Expat License (often ambiguously called the “MIT License”), or the Apache License 2.0. Doing so is easy, does not negatively affect you, and is highly appreciated as a contribution to free software.

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