Millennium is an open-source low-code modding framework for creating, managing and using themes and plugins for the desktop Steam client. Themes customize the client with CSS, while plugins extend functionality through TypeScript and LuaJIT. Users can write their own or download community-made themes and plugins. The project is community driven and open source.
Jeff Frohwein's GameBoy Tech Page collects Game Boy technical documentation, development tools, and related links. Listed items include the GBDK ANSI C cross-compiler, RGBDS assembler, map and tile design tools, ReadPlus, and a Print Screen demo ROM with source code.
Adventure Game Studio is open-source software for creating graphical point-and-click adventure games. It is free, standalone, and requires no subscription, with a Windows-based IDE that integrates tools for importing graphics, writing scripts, and testing. Games made with it can be played on multiple platforms, including Linux, iOS, and Android. The site offers downloads, a manual, tutorials, and community support forums.
The Open Source Games List (OSGL) is a site for browsing technical information about open source games and related engines, frameworks and tools. Content is based on descriptions stored on GitHub, and supported platforms include Windows, Linux, macOS, Android, iOS and web. The site states it is a best-effort result likely to contain inaccurate information.
EDOPro is an open-source automatic duel simulator developed by the Project Ignis team, formerly behind YGOPro Percy. It is described as an evolution of the YGOPro system available on major desktop platforms, with new features and bug fixes. The team also publishes scripting guides and reference material for the simulator.
Hallownest.net is an interactive, high-resolution map of Hollow Knight assembled from hundreds of thousands of screenshots, with draw-over and correction work. It is zoomable to gameplay view, and the author began it in August 2017 and finished it in February 2023.
ModMyClassic is a community site that hosted Project Lunar and Project Eris, tools for modifying mini gaming systems. Active development on the projects has been on indefinite hold for over five years. The site offers archived project pages, downloads, an archived website, RetroArch cores and open source ports, and an active Discord community.
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Jeff Frohwein's GameBoy Tech Page collects Game Boy technical documentation, development tools, and related links. Listed items include the GBDK ANSI C cross-compiler, RGBDS assembler, map and tile design tools, ReadPlus, and a Print Screen demo ROM with source code.
Adventure Game Studio is open-source software for creating graphical point-and-click adventure games. It is free, standalone, and requires no subscription, with a Windows-based IDE that integrates tools for importing graphics, writing scripts, and testing. Games made with it can be played on multiple platforms, including Linux, iOS, and Android. The site offers downloads, a manual, tutorials, and community support forums.
The Open Source Games List (OSGL) is a site for browsing technical information about open source games and related engines, frameworks and tools. Content is based on descriptions stored on GitHub, and supported platforms include Windows, Linux, macOS, Android, iOS and web. The site states it is a best-effort result likely to contain inaccurate information.
EDOPro is an open-source automatic duel simulator developed by the Project Ignis team, formerly behind YGOPro Percy. It is described as an evolution of the YGOPro system available on major desktop platforms, with new features and bug fixes. The team also publishes scripting guides and reference material for the simulator.
Hallownest.net is an interactive, high-resolution map of Hollow Knight assembled from hundreds of thousands of screenshots, with draw-over and correction work. It is zoomable to gameplay view, and the author began it in August 2017 and finished it in February 2023.
ModMyClassic is a community site that hosted Project Lunar and Project Eris, tools for modifying mini gaming systems. Active development on the projects has been on indefinite hold for over five years. The site offers archived project pages, downloads, an archived website, RetroArch cores and open source ports, and an active Discord community.
