Search has been busted in various ways for quite a while. It was towards the top of Bart's to-do list, but something must have held it up. If I happen to see him on the IRC I will ping him about it.
CC-By does not require permission. The artist has already given permission by licensing it. Reread the license requirements--the central thing you need to do is give credit to the author.
I very much like this sort of thing, and I'm always happy to see someone else doing this kind of work. Bravo, and keep 'em coming :)
Isn't there already a very notable game called Pixel Dungeon? http://pixeldungeon.watabou.ru/
This will no doubt come in handy. I know in the past we've had a number of people asking for top-down zombies.
I appreciate you sharing this, but if you save pixel art as a .jpg it gets corrupted and becomes unusable. You need to use a non-lossy format like .png for pixel art.
It looks perfectly kosher to me. Nothing in the contest rules would exclude CC-By-SA assets at all. The only term they mention is the potential for conflicts with non-commercial licensing, but we don't accept those licenses into the archive.
Best of luck--I hope you use the assets and win some sweet loot. We'd all like to see that I think.
I don't know if I would say it's unethical to use assets which a company freely chose to release under an open license. To me this is more a question of courtesy, which is a somewhat higher standard. It is the best policy for OGA to be courteous and I wholeheartedly support it. But I wouldnt necessarily say someone would be in the wrong to use these assets. I really do believe that licensing matters and should be regarded as such, whether we host them or not.
It's too bad whenever a contributor chooses to leave. Nikita, occasional issues and differences aside, we do appreciate the time you have taken to track down freely licensed assets and bring them to the site. I wish you the best of luck in your future endeavors.
Clint: Thank you for explaining your reasoning. Next time, please do something like flagging with a licensing issue and mentioning your reasons more directly to avoid this kind of confusion. (We'd also love to have you on the IRC again, and it would have made this a bit smoother too).
I think we could always ask the team directly. They did after all choose to upload them as clean, unblurred screenshots including some isolated assets. Naturally we will honor their wishes either way but I think there's a chance that they wouldn't mind.
Nikita: we've had this conversation before, including the cynical and practical side which should satisfy you if the ethical side doesn't. I don't think we need to have that conversation again.
Not a real Mickey Mouse.