Topic: Fishing
Quite often you can find yourself without any pvp and fed up of mining and needing something to do. What better than fishing!
It would be something that is easy to get into, and is available to everyone, from solo carebears on Alpha islands to the proud fishers of Beta islands, and is something that can reward you with shiny new fishes.
Fishing could be an extension to your current industry modules. Every island could have an ever-changing collection of fishing spots that players will be able to fish with their telescopic fishing rod modules and reap their rewards when they find them. As well as fish there could be several types of artifacts ranging from simple salvage containers, through hidden stashes guarded by angry NPCs fish, science vessel wreckages holding calibration templates of new Mk2 robots or even alien data storages with precious intel that will get you on special fishing missions. Since this would be a very easily expandable system, it could add more fish types every now and then.