Browse free open source C++ Compilers and projects below. Use the toggles on the left to filter open source C++ Compilers by OS, license, language, programming language, and project status.

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  • 1
    Software Development Kit for the Nintendo(tm) Gameboy Advance(tm) based on GCC.
    Downloads: 16 This Week
    Last Update:
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  • 2
    QT AGI Studio is an IDE that allows developers to create games using Sierra On-Line's AGI system that was used in the early 80s to create games such as King's Quest 1, 2, and 3, Space Quest 1 and 2, Police Quest 1 and Leisure Suit Larry 1.
    Downloads: 4 This Week
    Last Update:
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  • 3
    ZASM is a 2 pass assembler for Zilog's 8-bit CPU Z80. Supported platforms: Unix-style OS, e.g. MacOS X, Linux, BSD. Special support for ZX Spectrum emulator file formats. Binary or intel hex file output.
    Downloads: 9 This Week
    Last Update:
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  • 4
    The purpose of the FreeSC project is develop free scenery compiler/decompiler for Microsoft Flight Simulator.
    Downloads: 1 This Week
    Last Update:
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  • 5
    Children of Fire is based on AD&D. It will work on Windows an Linux at least. Containing computer generated world.
    Downloads: 0 This Week
    Last Update:
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  • 6

    Developer Resources console dev tools

    Moved to GitHub: github.com/developer-resources-co/drdevtools

    # ⚠ This project has moved to GitHub **drdevtools is now maintained on GitHub:** **[github.com/developer-resources-co/drdevtools](https://github.com/developer-resources-co/drdevtools)** The complete CVS history was migrated to git on 2026-06-10. This SourceForge project is retained only as a read-only archive — all current development happens on GitHub. Please update your bookmarks and clone from the GitHub URL above.
    Downloads: 0 This Week
    Last Update:
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  • 7
    This project originally was about a megaman clone called "Game Developer Man". Game Developer Man, the game, has long since tanked. However this project has moved on to the KRGP.
    Downloads: 0 This Week
    Last Update:
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  • 8
    Some features are lacking in the 'ES'-compiler for Serious Sam. Here we try to fix them. An '#include' for inside ES itself is the first project, but there may be more.
    Downloads: 0 This Week
    Last Update:
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  • 9
    Falconer-Try Studios is developing this new gaming engine for 2D, 3D and soon VR environments. It will be best for RTS and FPS games. See the documentation for more data.
    Downloads: 0 This Week
    Last Update:
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  • 10
    IFL is an Interactive Fiction Language a.k.a. a language for developing text adventures. It is a weakly-typed object-oriented language with a concise syntax. The project includes a compiler and a virtual machine for running games developed in IFL.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    LoseThos, a free, 64-bit, multicore, PC operating system designed from scratch -- not a Unix. No bloat. Boots in 2 seconds. Comes with games, C compiler, tools and lots of demos of the API! Test-drive or install -- it is a live CD.
    Downloads: 0 This Week
    Last Update:
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  • 12
    A project to create a compiler suite for the creation of NES binaries.
    Downloads: 0 This Week
    Last Update:
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  • 13
    SuperWikia Alpha Codebase 1.1

    SuperWikia Alpha Codebase 1.1

    SuperWikia: The Runtime/Realtime Environment for Codesmiths

    The SuperWikia Alpha 1.0 application is an IDE specifically developed for 3D and graphic content. Its built upon the Unity foundation and incorporates various libraries from Komodo IDE, wxDevC++, CodeBlocks, QT Creator and other applications. Its Realtime purpose is an IDE (codesmith developer access), its Runtime (U/I) function is as a space building simulator, operating in conjunction with the SuperWikia 'Navigator' user interface to simulate space economics and fleet operations. It allows users (known as 'data fleet navigators' or DFN's) to compete in tourneys over vast regions known as 'expanses' and to create envoys that manage onsite and offsite stations. Using additional SuperWikia components, users may enhance their experience with plugins and 'dataplates' that help build the Runtime environment. Codesmiths (SuperWikia Alpha developers) can also build on top of the codebase using 'transcribes', acronym/algebraic encodes that differentiate codesmith works.
    Downloads: 0 This Week
    Last Update:
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  • 14
    TScript is an opensource scripting engine, including two demos and some tiny games written in it by friends. It's easy to make your system configurable at a script level by adopting TScript. Please refer to http://tscripta.sf.net
    Downloads: 0 This Week
    Last Update:
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