Startup & Indie Dev Tools Tools

Unity official multiplayer SDK with RPCs and NetworkVariable.

Free, feature-rich Unity networking solution with client-side prediction.

Reliable UDP networking library used in many indie game projects.

Networking library for .NET-based games with reliable/unreliable channels.

Open-source 2D rigid body physics engine used in thousands of games.

Professional real-time 3D physics engine for games and simulations.

Fast 2D and 3D physics engine written in Rust with WebAssembly support.

Adaptive audio solution and middleware for dynamic game audio.

Audiokinetic audio middleware for real-time interactive audio in games.

Easy-to-use, free, portable C++ audio engine for games.

Animated sprite editor and pixel art tool for game asset creation.

Modern open-source 2D level editor with auto-tiling and multi-world.

Flexible open-source tile map editor for 2D games.

Free, open-source level editor for indie game developers.

2D skeletal animation tool optimised for game development.

2D game animation tool with modular bone-based animation.

Free 2D game animation design tool with skeletal animation.

Industry-standard 3D texturing toolkit for creating game-ready materials.

Massive library of AAA photorealistic 3D assets and surfaces for Unreal.

3D model marketplace with game-ready assets in various formats.

Open marketplace for indie game distribution, demos, and jam games.

Platform for indie game developers to host and share games.

SDK for publishing HTML5 games on the CrazyGames platform.

Free game analytics platform for tracking player behaviour and KPIs.

Player behaviour analytics platform integrated into Unity game engine.

Google Firebase backend for game analytics, auth, and cloud saves.

Game backend as a service — leaderboards, inventory, and player accounts.

Real-time player behaviour analytics and anti-cheat for online games.

AI-powered procedural content generation tool for game worlds.

AI engine for creating intelligent NPCs with dynamic conversations.