Unity is a multiplatform game development tool, designed from the start to ease creation. A fully integrated professional application, Unity just happens to contain the most powerful engine this side of a million dollars.
Amazing range of platform choice to build to (all with separate licencing so you aren't paying for something you don't build for). Not to mention there is a free (slightly limited) licence for pc, mac and linux.
This engine takes pure advantage of component model and allows developers to truly design something modular, which is my personal end-goal in program design.
Every developer should at least have a look at what this engine offers to see the advantages it offers over the others.
unity is a amazing engine!!
not only is it straight forward to use assets for games are easily found due to the amazing assets store and the editor exstentions make thing that little bit easier to do and best of all it's free. look what i have accomplished in a month @ Indiedb.com
choosing unity is a no brainer and here is why:
4.- simple cross platform portability
5.- choose between C#, JS or BOO with full IDE included
6.- full tool workflow available and great compatibility with third party software
7.- fast on the go WYSIWYG iterations on your game
8.- no genre specific, you can make from a casual card game to a full blown multiplayer RPG
9.- problem free fast deployment to supporting platforms
10.- cross platform game authoring ( Windows and Mac OSX)
11.- engine with most supported platforms
12.- battle tested ( thousands published titles with it)
13.- basic licenses for desktop and mobile publishing are free for commercial use, so no financial barrier to get started
14.- great community and a lot of excellent resources like the asset store with hundreds and hundreds of unity related products to help with your production
15.- vast learning material available on the web
16.- growing every year to become a standard not only among indies and small studios but also big AAA companies
if this is not enough for you or your team, you seriously should rethink your strategy