Game Engines & Frameworks

Fast 2D WebGL rendering engine for browser games

Replaces Adobe Animate runtime

Fast HTML5 game framework for browser games you host yourself

Replaces Construct, GameMaker

Open-source remake of classic RTS games

Replaces Command & Conquer, Red Alert

Open-source WebGL game engine for 3D browser games

Replaces Unity WebGL

Open-source engine reimplementation of Age of Empires II

Replaces Age of Empires II original engine

Emulate videogames system and play videogames through your web browser

Open-source voxel game engine and server

Replaces Minecraft

Dedicated server software for hosting Minetest game worlds

Replaces Minecraft server

Self-hosted ROM manager and retro game library

Replaces Playnite, LaunchBox

MMORPG server emulator for World of Warcraft

Replaces official WoW servers

Open-source cross-platform 2D and 3D game engine

Replaces Unity

Modernized Diablo engine with cross-platform multiplayer

Replaces Diablo original

Open-source engine reimplementation for Morrowind

Replaces Morrowind original engine

Lightweight HTML5 game engine for browser games

Replaces GameMaker, Construct

Emulator of classic x86 PCs for retro gaming and software

Replaces PCem

Self-hosted in-browser retro game emulator

Replaces RetroArch web

Open-source engine for hosting real-time strategy game servers

Replaces Total Annihilation

TypeScript-first 2D game engine for the web

Replaces GameMaker, Construct

Self-hosted game library server with launcher clients

Replaces Playnite, Steam library

Fun JavaScript library for making browser games fast

Replaces Phaser

Web-based Minecraft server management panel

Replaces Minecraft Realms, Pterodactyl

Lightweight RCON client for remote game server administration

Replaces In-game server console

Self-hosted ROM library and metadata server

Replaces LaunchBox

Open-source server emulator for Final Fantasy XIV

Replaces official FFXIV servers

Open-source engine for the Marathon trilogy with multiplayer

Replaces Marathon original

Open-source 2D action-RPG game engine

Replaces RPG Maker

Continued MaNGOS World of Warcraft server emulator

Replaces official WoW servers

Open-source MMORPG engine and game framework

Replaces World of Warcraft

Free 2D game editor with a visual interface and code

Replaces GameMaker Studio

Open-source reimplementation of Command & Conquer: Red Alert

Replaces Command & Conquer: Red Alert original