The best 3D Modeler alternative to Unity is Armory 3D, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Unity and nine of them are 3D Modelers so hopefully you can find a suitable replacement. Other interesting 3D Modeler alternatives to Unity are UPBGE, Verge3D, Range Engine and Cafu Engine.
Armory is an open-source 3D game engine with full Blender integration, turning it into a complete game development tool. The result is a unified workflow from start to finish, making you work faster. No more jumping between different applications.
Verge3D is a powerful and intuitive toolkit that allows Blender, 3ds Max or Maya users to create immersive web-based experiences. Verge3D can be used to build interactive animations, product configurators, engaging presentations of any kind, online stores, explainers, e-learning...
Range Engine is a light and powerful game engine and 3D software, made based on Blender Game Engine with improvements from UPBGE.
The Cafu Engine is an all-purpose, modern 3D graphics engine and game development kit, feature complete to get you started quickly.
CopperCube is a 3D editor for creating interactive 3D applications or simple games for Flash / Stage 3D, WebGL or as application. No programming is necessary for this. Simply import your 3D models, specify camera controllers and behaviors, and hit 'publish'.
DX Studio combines the latest in real time 3D graphics technology from industry and gaming with rapid application development tools in a powerful 3d engine.
Your project’s smart 3D digital twin as a Service. SmartShape (formerly Minko) is a technology to develop and design rich, interactive and universal 3D applications targeting computers, web browsers and mobile platforms.
Lite-C is a programming language for multimedia applications and personal computer games, using a syntax subset of the C language with some elements of the C++ language. Its main difference to C is the native implementation of multimedia and computer game related objects like...
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Fully integrated to last builds of Blender 3d, very powerful, and multiplatform ;