In public mode, your newly selected DarwinTunes will be available to
other players for mating. If others choose your DarwinTune, you score points!
In private mode, your newly selected DarwinTunes are never available to
other players for mating. Be careful - if you stay in private mode too
long you'll stop scoring points!
DarwinTunes was designed as a multiplayer game.
You can play on your own for a while but you won't get any points until other players choose your tunes for mating.
If your score isn't going up, come back later and see if it has changed. Or... reach out and get some people to play with you in real time - it's more fun that way!