Heres my day 4 submission: https://theterrificjd.itch.io/snowday-fps
First person shooter - reach the goal without dying, gather snow to shoot snowballs at the snowmen in your way, or parkour around them to avoid danger entirely.
It's got a very simple code base, nothing extravagant going on, so it should be easy for most to pick it up and start making changes/additions. I also "accidentally" removed all of the projects audio (just ran out of time , forgot about my plans to replace it)