hmmm ... I won.. though reading at the comments people seems to be struggling a bit.. some running into issues of not having enough resources. .?
Perhaps when I opened up the game it got bugged somehow...
Anyways, here's my experience..
1. had no idea what to do, reading the description I knew there was turrets in this game, just didn't know how to place them ..
2. Learned where you can build the turrets, but didn't know how to gather resources..
3. Some time later I lost. .and then playing the game again (1st bug I found, is that after you lose and play again, the turrets seems to not target anyone anymore..)
4. Closed the game and reopened it. (Maybe the secret strategy comes here?) Build the turrets as fast as you can.. gather resources and continue building/upgrading them.. once you got to 4 fully upgraded turrets, enemies just can't touch your castle anymore..
5. And now it just becomes a matter of time .. gather more resources to fix your ship.
And as others have pointed out.. would be good to have some sort of feedback on gathering resources.. other than that.. I'm impressed on how much you made in such a short time.
Amazing!