Long before MO we had UO, a very similar Sandbox Game. It had the same Problems, all Spots camped, Griefers everywhere and most Player werent able to leave the Guardzones. Then the Devs decided to mirror the Map and create Trammel and Felucca and some Moongates to change Facets. Trammel got later even more Land and Dungeons to explore, no pvp or griefing allowed there -> 90% of the Players moved to Trammel. In Felucca same Rules as before, but double Resources from Mining/Hunting and they added Champspawns in the dungeons. Since there was no need to hide in large Zerg-Guilds anymore there where a lot of good fights in Felu. On the other Side, a lot of new Player joined in, had fun in peacefully exploring, trading and developing their chars. Some of them moved later to Felucca joining in pvp stuff. Everyone happy, besides some griefers which cried that they couldnt kill helpless newbies anymore. Even the Communuíty changed from rather toxic to rather helpful and friedly.
And they added content (Sandbox Games need Content too !). Small repeatable Quests where you got some special colored clothes, deco Items for your House or some Spells. Crafting was primitive compared to MO, but had a lot more interesting Items, Clothes, Armors to craft. Finally it felt like playing a magic medieval hardcore Sandbox Game and not playing a schoolyard banging with swords and Arrows.
And they added content (Sandbox Games need Content too !). Small repeatable Quests where you got some special colored clothes, deco Items for your House or some Spells. Crafting was primitive compared to MO, but had a lot more interesting Items, Clothes, Armors to craft. Finally it felt like playing a magic medieval hardcore Sandbox Game and not playing a schoolyard banging with swords and Arrows.