I came first in a 48 hour 4x person gamejam with a game idea in 6 hours with 3x people.

Some info: I had an idea as soon as the topic went live, told the team this is the idea (button masher), we are going to do it in unity (at the time I was working at a studio that used UE4.x), and I'll also make a custom controller using an old keyboard to make it more fun. Ended up coming first place and won a nice bottle of champagne each, and at no point did we over stretch. Nice clean project with a good night's sleep in-between. The team was me (dev), an artist and a technical designer.

That was my first start to finish use of unity and C#, and now I exclusively use unity and make games for Xbox One and Steam.