Hello.
Is it legal to use somebody else’s sprites from a game that is surely copyrighted for a university project/demo? My game won’t be sold nor be available to public. If the sprites(content) are only used for self educational purposes what I mean. The reason why I’m not doing it from scratch is the fact that I’m not an artist, I cannot create really good sprites, and if I’d use free sprites I doubt that there’s something I really need, and I want to be motivated thus I recreate a game I used to enjoy when I was young.
No.
That is quite sad and doesn’t make sense to me, I mean I’m not making any profit, but thanks for your reply. Will have to replace my current sprites with something else then.
That you don’t make a profit doesn’t mean you can start pirating art.
You should find out if your professors care or not. It might not be legal, but you’re not going to get into any trouble if you rip some sprites for a project that isn’t going online.
In the many game dev courses I have taken, 3 were intro courses and expected your final product to be functional and either full of cubes for graphics or full of copyright graphics. It might also be worth looking into your student contract. Mine states that if anything I develop is good / makes money, it belongs to the school and I get only 40% of whatever it makes. By sticking copyright material everywhere (even where it’s totally unnecessary), I’ve produced better looking projects that the school can’t use for anything 
The issue with copyright is whether or not people have access to an asset for free that is being sold by the author.
^ that is where people start to care and give you take down notices & lawsuits.
No, it’s not legal. Ask for permission.