Deathray Games released one of their games under the creative commons license.
It is a very simplistic, one-player, fantasy hack’n’slash browser game which leaves a lot to do with it.
You can easy adopt it to have it build in other game engines, make it multi player whatever as long you follow the creative commons license.

Game: http://deathraygames.com/play-online/drg/greenhydra/index.html
Download: http://deathraygames.com/play-online/drg/greenhydra/archives/LOGH_v1.zip
Deathray the [...]

Aranging tiles for your game can be bothersome. So We found this usefull cheat sheet for using tile sets to build your game worlds.

 Name: SMF Army
 Author: Crip 
 Type: Modern 
 First Created: April 20, 2008, 05:05:54 PM
 Last Modified: April 20, 2008, 06:30:58 PM
 Compatible With: 1.1.4
 Color style: Dark 

 Name: America’s Army Bridge
 Author: Hairy 
 Type: Minimal 
 First Created: February 19, 2008, 08:25:15 AM
 Last Modified: August 09, 2008, 09:20:29 AM
 Compatible With: 1.1.4, 1.1.5
 Color style: Neutral 

 Name: Army Green
 Author: wmd5002 
 Type: Natural 
 First Created:  July 30, 2008, 12:01:11 AM
 Last Modified: November 08, 2008, 02:00:59 AM
                           [...]

The Massively Multi-Player Online Role-Playing Game Creation Engine

The Realm Crafter Engine 
The Realm Crafter game engine is the heart of the MMORPG development system. The engine creates the virtual game world and the behavior of everything in it. It generates 3D images and handles the network communications. The Realm Crafter engine is designed to be modular, [...]

Pro Version adds NVIDIA PhysX
New Collision Library Incorporated 

We have recently begun the incorporation of the NVIDIA PhysX Physics library into Realm Crafter Professional. It will replace the current collision engine to provide faster and more reliable collision detection. Integrating PhysX opens many new doors for the future of Realm Crafter; such as the use of [...]

This is a selection of FREE 3Ds Max Ammuntion Models that can be used in games.

3D Model of a Car Tire, Game ready

Free to use 3Ds Max Machine Gun Cartridge

Black TFT Flat Screen Monitor, Med Resolution with Screen Texture

TFT Flat Screen Monitor Med Res. with Screen Texture