I am not a big gamer, but I remember Starcraft being so much fun, addictive in fact. It looks like Illuvium Zero is the most popular (is it?) of the Illuvium games in terms of amount of people and time playing. I suggest building on this and have landowners get an opt in Starcraft style game (those that don't want to do this wouldn't have to). Not sure how best to do this but here are some ideas. Add more structures possible that are defensive/offensive in nature (like in Starcraft). Perhaps you could use biodata to create mechs/drones/etc. to go to neighboring lands and capture resources, biodata, blueprints, etc. Perhaps you could create a portal which would create a connection between two lands or the land to the overworld. What do you think? Perhaps you could wall off certain areas that would be protected during the fight. I'm not sure how it would work, what do you think?