Open source focus

Open Source Alternatives to Moon Active

21 open source Gaming options similar to Moon Active, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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GDevelop7
Computer GamesLondon, GB
No-code game development platform empowering creators to build games without prior technical skills.
Open source
Nomic AI59
AI Infrastructure StackNew York City, United States$19.0M
Nomic AI builds tools to make AI explainable and accessible, focusing on data curation and visualization.
Open source · Self-hostable
Bitwarden57
CybersecuritySanta Barbara, United States$130.0M
Open-source password manager for individuals, teams, and businesses.
Open source · Self-hostable
Comfy Org53
AI Image Generation$30.0M
Comfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.
Open source
Mastodon51
Social MediaJena, Germany$63.0M
A decentralized, open-source social media platform and alternative to larger apps like X and Threads.
Open source · Self-hostable
Heroic Labs47
GamingLisbon, Portugal
Social infrastructure for games, makers of Nakama game server.
Open source · Self-hostable
Mycroft AI38
Voice AssistantKansas City, United States$4.0M
Open-source, privacy-focused voice assistant and AI platform.
Open source · Self-hostable
Blockmesh Network31
BlockchainIsrael, Israel
Decentralized data infrastructure and AI framework for AI training, inference, and ecosystem intelligence.
Open source · Self-hostable
vxtwitter.com31
Web DevelopmentSan Francisco, United States
The world's leading platform for software development and version control, enabling collaboration and code hosting for millions of developers.
Open source · Self-hostable
GPT4All26
Foundation ModelNew York, United States
Open-source, privacy-focused AI assistant that runs locally on your hardware.
Open source · Self-hostable
Omnivore23
Consumer App
A free and open-source read-it-later service with AI-powered features and integrations.
Open source · Self-hostable
Open Bitcoin Tracker23
Fintech
A privacy-focused, open-source Android app to track Bitcoin value without accounts or analytics.
Open source · Self-hostable
Lemmy23
Social Media
A decentralized, open-source social link aggregator and discussion platform for communities.
Open source · Self-hostable
MCP.so10
Developer Tools
A community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.
Open source · Self-hostable
Freetube9
Consumer App
Free, open-source YouTube client for iPhone and iPad. Watch YouTube without ads, download videos from YouTube, Instagram, TikTok, X and 2,000+ sites. Background audio, AirPlay, PiP. Sideload with a free Apple ID.
Open source
Vexillon9
Personal AI Assistant
MIRA is a self-hosted, open-source personal AI assistant that lives on your hardware and serves your family privately.
Open source
Signal9
MessagingWashington, United States
End-to-end encrypted messaging and voice calling app focused on privacy and security.
Open source
Off Grid9
Edge AI
Off Grid runs AI models directly on your phone, ensuring privacy and local processing.
Open source · Self-hostable
Codel8
Agentic AI
An open-source, autonomous AI agent for complex tasks using terminal, browser, and editor interactions.
Open source · Self-hostable
Open Game Icons7
Game Development
A vast collection of free SVG and PNG icons for games and applications.
Open source
Sales & Dungeons
Gaming
Turn every thermal printer into a TTRPG companion machine!
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
GDevelopNo-code game development platform empowering creators to build games without prior technical skills.	Computer Games	Open source	London, GB	—	7
Nomic AINomic AI builds tools to make AI explainable and accessible, focusing on data curation and visualization.	AI Infrastructure Stack	Open source · Self-hostable	New York City, United States	$19.0M	59
BitwardenOpen-source password manager for individuals, teams, and businesses.	Cybersecurity	Open source · Self-hostable	Santa Barbara, United States	$130.0M	57
Comfy OrgComfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.	AI Image Generation	Open source	—	$30.0M	53
MastodonA decentralized, open-source social media platform and alternative to larger apps like X and Threads.	Social Media	Open source · Self-hostable	Jena, Germany	$63.0M	51
Heroic LabsSocial infrastructure for games, makers of Nakama game server.	Gaming	Open source · Self-hostable	Lisbon, Portugal	—	47
Mycroft AIOpen-source, privacy-focused voice assistant and AI platform.	Voice Assistant	Open source · Self-hostable	Kansas City, United States	$4.0M	38
Blockmesh NetworkDecentralized data infrastructure and AI framework for AI training, inference, and ecosystem intelligence.	Blockchain	Open source · Self-hostable	Israel, Israel	—	31
vxtwitter.comThe world's leading platform for software development and version control, enabling collaboration and code hosting for millions of developers.	Web Development	Open source · Self-hostable	San Francisco, United States	—	31
GPT4AllOpen-source, privacy-focused AI assistant that runs locally on your hardware.	Foundation Model	Open source · Self-hostable	New York, United States	—	26
OmnivoreA free and open-source read-it-later service with AI-powered features and integrations.	Consumer App	Open source · Self-hostable	—	—	23
Open Bitcoin TrackerA privacy-focused, open-source Android app to track Bitcoin value without accounts or analytics.	Fintech	Open source · Self-hostable	—	—	23
LemmyA decentralized, open-source social link aggregator and discussion platform for communities.	Social Media	Open source · Self-hostable	—	—	23
MCP.soA community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.	Developer Tools	Open source · Self-hostable	—	—	10
FreetubeFree, open-source YouTube client for iPhone and iPad. Watch YouTube without ads, download videos from YouTube, Instagram, TikTok, X and 2,000+ sites. Background audio, AirPlay, PiP. Sideload with a free Apple ID.	Consumer App	Open source	—	—	9
VexillonMIRA is a self-hosted, open-source personal AI assistant that lives on your hardware and serves your family privately.	Personal AI Assistant	Open source	—	—	9
SignalEnd-to-end encrypted messaging and voice calling app focused on privacy and security.	Messaging	Open source	Washington, United States	—	9
Off GridOff Grid runs AI models directly on your phone, ensuring privacy and local processing.	Edge AI	Open source · Self-hostable	—	—	9
CodelAn open-source, autonomous AI agent for complex tasks using terminal, browser, and editor interactions.	Agentic AI	Open source · Self-hostable	—	—	8
Open Game IconsA vast collection of free SVG and PNG icons for games and applications.	Game Development	Open source	—	—	7
Sales & DungeonsTurn every thermal printer into a TTRPG companion machine!	Gaming	Open source · Self-hostable	—	—	—