虚幻引擎（英语：Unreal Engine）是一款由Epic Games开发的游戏引擎，是目前世界最知名授权最广的顶尖游戏引擎，占有全球商用游戏引擎80%的市场份额。多用于开发第一人称射击游戏，最新版本为虚幻引擎4。
Epic’s goal is to put the engine within reach of everyone interested in building games and 3D content, from indies to large triple-A development teams, and Minecraft creators as well. For $19/month you can have access to everything, including the Unreal Editor in ready-to-run form, and the engine’s complete C++ source code hosted on GitHub for collaborative development.
This is the complete technology we at Epic use when building our own games, forged by years of experience shipping games like Gears of War for Xbox and Infinity Blade for iOS, and now reinvented for a new generation. Having the full C++ source provides the ultimate flexibility and puts developers in control of their schedules and destinies: Whatever you require to build and ship your game, you can find it in UE4, source it in the GitHub community, or build it yourself – and then share it with others.
Develop in the Unreal Ecosystem
Beyond the tools and source, Unreal Engine 4 provides an entire ecosystem. Chat in the forums, add to the wiki, participate in the AnswerHub Q&A, and join collaborative development projects via GitHub.
To help you get started, we’re shipping lots of ready-made content, samples, and game templates. You’ll find it in the Marketplace in the Unreal Editor. Right now, it simply hosts free stuff from Epic, but its resemblance to the App Store is no coincidence: It will grow into a complete ecosystem for sharing community-created content, paid and free, and open for everyone’s participation!
Ship Games with Unreal
We’re working to build a company that succeeds when UE4 developers succeed. Anyone can ship a commercial product with UE4 by paying 5% of gross revenue resulting from sales to users. If your game makes $1,000,000, then we make $50,000. We realize that’s a lot to ask, and that it would be a crazy proposition unless UE4 enables you to build way better games way more productively than otherwise!
So, will this effort succeed? That’s up to you and your judgment of the engine’s value. Unreal Engine 4 has been built by a team of over 100 engineers, artists and designers around the world, and this launch represents all of our hopes and dreams of how major software can be developed and distributed in the future.
We find this future very exciting. It’s no longer dominated by giant publishers and marketing campaigns, but by a simple and honest proposition: Gamers pay for great games, and anybody who can valuably contribute to building those games can succeed, from indie developers, to large triple-A teams, and to individual programmers and content creators, too.
A New Beginning
This first release of Unreal Engine 4 is just the beginning. In the C++ code, you can see many new initiatives underway, for example to support Oculus VR, Linux, Valve’s Steamworks and Steam Box efforts, and deployment of games to web browsers via HTML5. It’s all right there, in plain view, on day one of many years of exciting and open development ahead!
We have enjoyed building Unreal Engine 4 so far and hope you will join us on this journey as a contributor to the future of Unreal!
史诗的目标是把接近大家感兴趣建筑游戏和 3D 引擎内容，从大三 A 开发团队和 Minecraft 创作者以及西印度群岛。19 美元/月你能访问的所有内容，包括虚幻编辑器在准备好运行形式和发动机完成 c + + 源代码托管在 GitHub 协同发展。
这是经验的我们在史诗建设我们自己的游戏，造就了多年为 Xbox 和无尽之剑的 iOS，航运的战争机器一样的游戏和现在重塑为新的一代时所使用的完整技术。有完整的 c + + 源代码提供无与伦比的灵活性，使开发人员控制他们的日程安排和命运 ︰无论您需要建立和船舶你的游戏，你可以找到它在 UE4 源在 GitHub 社区，或建立它自己 — —，然后与其他人共享。
在虚幻的生态系统的发展
超越的工具和来源，虚幻引擎 4 提供整个生态系统。在论坛聊天、 添加到 wiki、 参加 AnswerHub Q&A，加入通过 GitHub 的协作开发项目。
为了帮助您入门，我们这里发运大量现成的内容，样品和游戏的模板。 你会发现它在市场上在虚幻编辑器中。现在，它只是承载免费的东西，从史诗，但其应用程序商店的相似不是巧合 ︰ 它将长成一个完整的生态系统共享社区创建的内容，付费和免费的开放给每个人的参与 ！
船舶与虚幻的游戏
我们正在努力建立一个成功时 UE4 开发成功的公司。任何人都可以由支付所得销售给用户的毛收入的 5%出货 UE4 商业产品。如果你的游戏使 $1,000,000，然后我们会 $50,000。我们意识到这就是多问，和它会是一个疯狂的提议，除非 UE4 使您能够生成方式比其他方式更有成效更好的游戏 ！
所以，这种努力会成功吗？这完全取决于你和你的引擎的价值的判断。虚幻引擎 4已建成的 100 多个工程师、 艺术家和世界各地的设计师团队和这次发射代表我们所有的希望和梦想如何主要软件可以开发和分发在未来。
我们发现这一未来非常令人兴奋。它不再主导，由巨大的出版商和营销活动，但由一个简单和诚实的命题 ︰ 伟大的游戏，玩家支付和可贵可有助于建立那些游戏的人都能成功，从独立开发者，大三 A 队，和个别程序员和内容创作者，太。
一个新的开始
虚幻引擎 4 这第一个版本是只是个开始。在 c + + 代码中，你可以看到许多新的主动行动正在进行，例如要支持眼 VR、 Linux、 阀门的支持和蒸汽箱的努力，并部署到 web 浏览器通过 HTML5 游戏。 这就很好，在普通视图中，在多年的令人兴奋和开放发展未来第一天 ！
我们享有虚幻引擎 4 号楼到目前为止，希望你会加入我们这个旅程作为未来的虚幻的贡献 ！