Name: Anonymous 2015-06-16 16:30
You cant use CC-BY-SA content, even if license allows that:
http://opengameart.org/forumtopic/censored-broforce-sprites-and-game-ready
"Even if the license says Okay, ask before uploading if you're Not Sure. If it's obvious the artist wants their art to be shared and reused in this way (in other game projects), then you probably don't have to ask. Wikipedia is definitely on the opposite end. Assume people there have NOT shared art with the intention of being used in competing games."
I.e. this jerk (Clint Bellanger) challenges that Wikimedia Commons stuff is free to reuse. Because that may hurt some feelings.
http://opengameart.org/forumtopic/censored-broforce-sprites-and-game-ready
"Even if the license says Okay, ask before uploading if you're Not Sure. If it's obvious the artist wants their art to be shared and reused in this way (in other game projects), then you probably don't have to ask. Wikipedia is definitely on the opposite end. Assume people there have NOT shared art with the intention of being used in competing games."
I.e. this jerk (Clint Bellanger) challenges that Wikimedia Commons stuff is free to reuse. Because that may hurt some feelings.