Best Indie Games & Entertainment Tools in 2026

Free 2D game engine using Lua for rapid development

Community-driven open-source game engine for 2D and 3D

Open marketplace for independent digital creators

Desktop/Android/HTML5/iOS Java game development framework

Ready-to-use SRT / WebRTC / RTSP / RTMP / LL-HLS / MPEG-TS / RTP media server and media proxy that a

Unity3D Client And C# Server Framework

Java / JavaFX / Kotlin Game Library (Engine)

Terasology - open source voxel world

A retro game engine for Python

RTSP/RTP/RTMP/FLV/HLS/MPEG-TS/MPEG-PS/MPEG-DASH/MP4/fMP4/MKV/WebM

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL

A dead simple 2D game engine for Go

Cocos simplifies game creation and distribution with Cocos Creator, a free, open-source, cross-platf

Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, ada

Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game s

Fully automated video maker using motion graphics and text-to-speech synthesis to turn newsletters i

Download your Spotify playlists and songs along with album art and metadata (from YouTube if a match

Tiny fast HTML5 game engine with many features and no dependencies.

Manage your photos with Piwigo, a full featured open source photo gallery application for the web. S

A Node.js implementation of RTMP/HTTP-FLV Media Server

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red A

Photo gallery for self-hosted personal servers

s&box is a modern game engine, built on Valve's Source 2 and the latest .NET technology, it provides

A refreshingly simple data-driven game engine built in Rust

A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable f

Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and

Cross-platform game engine in Rust.

Fast, modern and advanced photo management suite. Runs as a Nextcloud app.

A simple and easy-to-use library to enjoy videogames programming

The Open Toolkit library is a fast, low-level C# wrapper for OpenGL, OpenAL & OpenCL. It also includ

A Flutter based game engine.

A tool to snap pixels to a perfect grid. Designed to fix messy and inconsistent pixel art generated

MuseScore is an open source and free music notation software. For support, contribution, bug reports

Flax Engine – multi-platform 3D game engine

zig game engine & graphics toolkit

Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF

Redot Engine – Multi-platform 2D and 3D game engine

3D and 2D game engine written in Rust

Stride (formerly Xenko), a free and open-source cross-platform C# game engine.

a fresh, modern & lightweight HTML5 game engine

🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.

Open-source voxel game engine — build your own block worlds

Lightweight and modular C++11 graphics middleware for games and data visualization

A wonderful list of Game Development resources.

3D C++ Game Engine - yet another open source game engine

Defold is a completely free to use game engine for development of desktop, mobile and web games.

Immersive Sim Template Project for GODOT 4

Murder is a pixel art ECS game engine.

General purpose 3D and 2D game engine using Go (golang) and Vulkan with built in editor

Minimal dark editor theme for the Godot game engine