First LD
I’ve been trying for years to write a game. However I’ve never finished a thing :(. Just burn trough the enthusiastic part and then the work stops. This time given the time frame maybe I will able to produce something at least playable. 
I’ll use Java most probably (although JavaScript trough Rhino is also an option). For the other stuff I’ll look in the Tools section (only used Paint.Net)
I wish success and fun to everyone participating 
PS: I wish self-replication to be the theme 