[shadowmint]

Some interesting legal stuff with this engine, which their FAQ(1) goes over.

Basically, use it for whatever, free of charge, but not with any other cloud services that mimic amazon's services(2).

Except cloud services for some things, which are fine:

    Your game may read and write data to platform services and public 
    third-party game services for player save state, identity, social 
    graph, matchmaking, chat, notifications, achievements, leaderboards,
    advertising, player acquisition, in-game purchasing, analytics,
    and crash reporting. 
 

Is it a game changer?

Hard to say, but like they say, you can't beat free.

If nothing else, a lot of people are going to download this and have a look at it and mess around with it.

Pretty exciting stuff. :)

[1] https://aws.amazon.com/lumberyard/faq/#licensing

[2] http://docs.aws.amazon.com/lumberyard/latest/userguide/lumbe...

[Keyframe]

Also: You can use hardware you own and operate for your game servers.

So, it's a fair deal. You can use your own servers and not AWS for anything, but you can't use other web services which are competing with AWS. You can also modify source code as you see fit, but not distribute it. That's about it. Can't complain.

[douche]

That sounds like a Steam clause. At this point, if you're licensing a PC game engine, and it's not Steam-compatible, it's DOA.