![Source SDK Game Development Essentials](https://wfqqreader-1252317822.image.myqcloud.com/cover/57/36705057/b_36705057.jpg)
Getting your tools
Great! You have installed Steam. Now what? There are a multitude of games that run on the Source engine. There are also many different versions of the Source engine: 2006, 2007, 2013, and multiplayer and single player variants for each. This book will focus on Half-Life 2: Episode Two (HL2: EP2) since it's the most recent single player build of the Source engine at the time of writing this book. In order to create content for HL2: EP2, you just need to own a copy of the game. Steam makes it easy to install games. So, if you haven't already, purchase and install HL2: EP2.
Instructions for installing Half-Life 2: Episode Two
Downloading and installing games with Steam is easy! Steam lets you securely purchase any game and will automatically install them once downloaded. The steps for installing Half-Life 2: Episode Two are as follows:
- Open Steam and log in.
- In Steam, just below the main toolbar, you will see STORE, LIBRARY, COMMUNITY, and your username in a large white font. Click on STORE.
- Search for
Half-Life 2: Episode Two
, purchase it, and install it. - You can monitor the download progress within the Downloads tab in the LIBRARY drop-down menu. HL2: EP2 will begin to install automatically once the download is complete.
The STORE is located in the top-left corner of Steam as shown in the following screenshot:
![Instructions for installing Half-Life 2: Episode Two](https://epubservercos.yuewen.com/5F7823/19470453708201706/epubprivate/OEBPS/Images/5923OT_01_02.jpg?sign=1739281922-dlLE8sT4jGaJWj4Kggq1PHITPsyVGnL7-0-de2370e6734ec73d550175083f6e68af)
Browse for Half-Life 2: Episode Two
as shown in the following screenshot. You can also get any other Source game.
![Instructions for installing Half-Life 2: Episode Two](https://epubservercos.yuewen.com/5F7823/19470453708201706/epubprivate/OEBPS/Images/5923OT_01_03.jpg?sign=1739281922-UTJ0ZCwhSASG6vDNysoILYfMpBtZjFA9-0-23849843964ac0f1fe962372ef87c76e)
Once the download and install is complete, launch the game and play around with the engine you will be developing for, as shown in the following screenshot:
![Instructions for installing Half-Life 2: Episode Two](https://epubservercos.yuewen.com/5F7823/19470453708201706/epubprivate/OEBPS/Images/5923OT_01_04.jpg?sign=1739281922-LjxsPFZmGh9lPBPIhqMfHPLcDwAtzTq3-0-1e1eb5830a19db984e1078843b007dd5)