Unity

Great and Powerful software though I'm kind of upset that the there aren't all that many serious developers working with this software. I heard there was a System Shock remake being made using Unity that looked amazing but unfortunately the developer switched game engines.

If the developers for Unity decided to make this available for a Linux environment and provided an open source stripped down version then I believe we could see a greater interest in this software but as it is now I doubt we'll see that any time soon.

Regardless of all that this is still amazing software available for the public. You should definitely check it out.

Unity is an easy-to-use and powerful game engine which has helped me in my University studies. I am looking to get a career in the computer game design industry.

there are many problems with unity and its recent updates. if you add too much high 3d models stuff like a forest, it will lag the game and no way to fix this that's how unity was made. Then you got all these fanboys who claim to love unity, do they really like it? did they ever build anything that is consider hard? 95% of unity developers never even made a open world game just the basic 3d level game. The engine is not even helpful with network (aka: multiplayer), thats a whole new kind of C# language and guess what hosting a server is not free. There is a problem with unity being used as an easy way to build easy games with plug-ins, that itself is making many bad games that people just upload to random websites.

Also unity does not have the "forever game" tag, once we upgrade our computers into something like "windows 20" we will no longer be able to play unity games from the 2015 era. It happen before with google shutting down the NPAPI for security reasons, there goes 2005-2015 unity web-player games that everyone had worked hard. Who to say that it might not happen with android, it already is upgrading to "marshmallow".

If you want better game development and a game that will last forever, then use another engine.

Unity is great for beginners since it shows you how to implement some advanced stuff very easily.

probably the worst game engine ever, that i really wonder why it got so popular - it makes very complicated what is supposed to be simple - project retrocompatibility to editors is disastrous, tutorials are crappy, documentation is confusing and unclear, gnu/linux installers are hidden in forum posts (i wonder why), hub gets painfully messy when we try to start lots of projects for start learning, installed size and project size are huge in a nonsense scale (way too bloated), etc. - but there is a good thing in unity: it makes us very curious to find out other game engines around! :D

Others try but Unity is the King here,

Unity is basically a de-factor standard for mobile game development.