Unreal Engine is the perfect tool when it comes to ease in the creation of first person shooters. While its vast codebase can be daunting, the content examples provided with the project serve as a great resource both for learning purposes as well as a starting point for your project. Furthermore, the blueprint system is a great way to get a feel for how Unreal structures its engine, introducing you to the concept of things like an Actor and a Controller in a fairly painless way. One other major advantage is the fact that networking is a first-class concept. Replication of variables across the network can be as simple as toggling a flag on a variable to as complex as requiring validation and agency over who exactly has the right to modify a specific piece of data. You can also receive notifications as to when a variable has been replicated across the network. Simulating network players is relatively painless as you can spawn multiple agents capable of simulating network problems like high latency from within the editor. Collaboration with others is simplified to an extent through the integrated source control solution with support for Perforce, PlasticSCM, Subversion, and Git, though I have only personally used Subversion. It's transparent about its actions by showing you what commands it is running in a log window and asset management happens almost seamlessly. Trying to edit a file real quick? Sure, go ahead, but if you want to save it, it will prompt you to check out the file if possible or write the changes locally for temporary changes. Committing is just as simple and can be done from within the editor, though changes to C++ code will have to be handled by your native VCS client like TortoiseSVN. Its source code is also available to anyone who signs up for its free developer program.

A complete set of game development kit at one place like 2D, 3D and especially VR is added which is almost taking the market share in the recent times. It's free to use. Deployable to android and ios which is an advantage of developing game once itself. Need of prgrammers is not must for developing games here as Blueprint visual scripting GUI which does the task. And the best part is as a computer science prgrammer we have a good chance of editing c++ code which is customizable in any manner. And the best part is it is available in both windows and mac OS.

I like the most form unreal that there engine is free to use unless you use it for commercial use, and even after that there prices are cheap.