I know how to use unity and I am currently training for unreal engine but if you are aiming for a particular engine I can start learning, in addition to a month during the holidays I should have time. On the other hand for the project I don't really have any ideas, in fact it's my first jam so I don't really know what is achievable in 10 days. Maybe we should continue the discussion on discord? Maybe even a discord server if other people join us. And sorry for my English if it is not perfect, I am not really bilingual.