The last two times I took part in Ludum Dare, I reused base code from my in-development commercial game. This is allowed by the Jam rules.

I was going to do the same this time, but I had a chance of heart and decided that this time, it will be truly from scratch, starting with only the engine (in my case, Unreal) default project.

On one hand, I won't be bogged down by code that was originally written for a different game. On the other, I won't have as many pre-existing systems to use. It will be interesting to see how it goes. I might end up learning something along the way.

This is also the first LD where I intend to make my own music and sounds.

Technically, those differences would qualify me to enter the Compo, although I'll probably stick with the Jam because 48 hours is an extremely strict deadline.