List of Game Engines - Proprietary - Freeware

Freeware

These engines are available for free use, but without the source code being available under an open source license. Many of these engines are commercial products which have a free edition available for them:

• BYOND — A free 2D engine for making top-down, isometric, or side scroller games for Windows.
• dim3 — Freeware 3D javascript engine for the Mac (although finished games are cross platform).
• Defold — Cross platform 2D game engine with built-in collaboration. Support for iOS, Windows, Mac OS X, Linux.
• DX Studio — A freeware 3D game engine with complete tools for 3D video game development. Upgrading to paid licenses would unlock extra features.
• Future Pinball - A pinball engine.
• Game Editor - A free 2D game engine capable of making games for PC, Mac, Linux, iOs, GP2X, Smartphone, Pocket PC, and in version 1.5, Box 2D, and Android Beta. Also uses C as a scripting system.
• Game Maker — A free game engine oriented towards beginners and people that do not want to learn how to program. A paid upgrade unlocks 3D Direct 3D support along with the ability to run Native Code.
• NeoAxis Game Engine — Windows and Mac OS X multi-purpose 3D Engine with Web deployment. For simulation, visualization and games. Free for Non-Commercial projects.
• Polygon Movie Maker / MikuMikuDance — A proprietary freeware 3D animation program written by Japanese developer Yu Higuchi. Notable for including several models of Vocaloid characters, but lacking any features to create new models.
• Papaya Social Game Engine - A free cross platform 2D OpenGL game engine developed by PapayaMobile for Android and iOS.
• Source engine SDK — Based on the game engine developed by Valve Software for Half-Life 2.The SDK is bundled with any Source game.
• Stencyl - A Windows, Mac, and Linux development tool for 2D games. Physic support, if desired in the game, is provided through Box2D integration. Stencyl can publish a single project to multiple target platforms, including Flash, iOS, and Android. Certain publishing options are available via yearly subscriptions.
• Unity — a game engine not tailored to a specific gamestyle for web, Windows, and Mac OS X (and soon Linux). The free version is feature limited compared to the PRO version. Support for the iPhone, Android, Nintendo Wii, PlayStation 3, and the Xbox 360 is available as addon licenses.
• Unreal Engine 3 / UDK — UE3 is still considered as one of the most popular game engines in the top market. Epic games released a free edition, called UDK (a binary release of the engine), which allows you to use the engine to create non-commercial games and applications for free. Commercial titles are also allowed under specific terms.
• CryEngine 3 SDK — CryEngine 3 is a new generation engine developed by Crytek to create the FPS game Crysis 2. The engine has been released recently, with a royalty bearing license model that is similar as with the UDK release of the Unreal Engine 3.
• Visual Pinball - A pinball game engine.
• World Builder — A classic Mac OS game engine.
• Wintermute Engine — A runtime and development tools for creating 2D and 2.5D point'n'click adventure games (Windows) . A "lite" Version is also available, but without the 3D Actor function (Windows, MAC, Linux)