In the third part of this multi-part tutorial, Ben Henry continues to walk us through the incredibly popular 'Source SDK' from Valve. After part one's look at the basics and part two's look at adding textures, today's part is dedicated to adding different entities to your (now almost complete) level! Valve's software is widely-regarded as some of the greatest on the planet, and the Source SDK is no exception! Let's take a look...

Note: click the 'Monitor' icon to view tutorial in full-screen HD.