When comparing UDK vs PureBasic, the Slant community recommends PureBasic for most people. In the question“What are the best 2D game engines?” PureBasic is ranked 40th while UDK is ranked 73rd. The most important reason people chose PureBasic is:
Can create single file executables without the need to install other libraries, run time environments, etc.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Large toolset
UDK has an extremely large toolset that allows creating almost anything without having to use a 3rd party tool or plugin.
Pro Triple A track record
UDK is an engine used by many big name companies for popular games such as the Gears of War series.
Pro Standalone executables
Can create single file executables without the need to install other libraries, run time environments, etc.
Pro The syntax is very beginner-friendly
Pro Same code on Windows, OS X and Linux
Same code can be compiled natively, without any interpreter for OS X, Windows or Linux, using the native GUI toolkit of the OS
Pro Many integrated features
Many libraries available without additional installations : 2D & 3D, database, network, sound, xml, JSON, http...
Pro Allows to program at a lower level than most alternatives
Pro Lifetime license
Pay once, use forever.
Pro Constantly updated
Pro Supports ARM in addition to x86, AMD64 and others
Pro Can compile to plain C code
Pro Grest user community / forums with the developer very active
Cons
Con Superseded by Unreal Engine 4
Con DevKit only runs on Windows
Even though UDK can deploy games to run on multiple platforms, including Mac, it does not feature support for development on Mac.
Con Limits games to FPS
UDK was originally developed for the FPS, "Unreal Tournament", and it certainly shows. While UDK is a very powerful engine, it takes quite a bit of work to make it do something other than an FPS.
Con Limited free version
Free version is limited to 800 lines and can not create DLL's.
Con Some bugs are present on the Linux platform
Con Slightly bogged syntax
Sometimes the syntax bogs down, just a little with long procedure names and such. A truly minor issue.
Con Not RAD
Not a RAD environment.