Thanks for your feedbacks :)
Suggestions in any language is OK thanks to Google Translator.
1 and 3 has been solved in our dev version.
--- Sharks appear more reasonably, not denpending on number of rafts roughly.
--- Survivors are more intelligent now.
2/4/5/6/7 are really cool !
We do introduce some approches to manage survivors, just look forward it.
More kinds of events/recipes/items are in game now. And again thanks to you for the ideas you mentioned here. :)