Best Photon Alternatives & Competitors in 2025

Build and operate Unity games at scale, featuring a liveops platform, game economy pipelines, scalable cloud servers, game programming tools, and more.

Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

PlayFab is a backend platform for games, delivering powerful real-time tools and services for LiveOps.

Moai is a spiritual successor to one of the elder gods of pixel editing: Autodesk Animator.

The home base for Ethereum developers.

The most advanced desktop 3d printer ever created

Castable wax resin for 3D printing jewelry

Beamable provides an SDK that enables game makers to easily add social, commerce and content management features to their games with drag-and-drop prefabs inside Unity.

Independent networking engine and multiplayer platform.

Massive multiplayer platform

Feature-packed 2D and 3D open source game engine.

Open Source

Hi there! LÖVE is an *awesome* framework you can use to make 2D games in Lua.

Open Source

Lua-based fantasy console for making and playing tiny, computer games and programs.