Trove is a free-to-play action massively-multiplayer-online-role-playing game (MMORPG) developed and published by Trion Worlds.
"Grab your friends, hone your blades, and set off for adventure in Trove, the ultimate action MMO! Battle the forces of Shadow in realms filled with incredible dungeons and items created by your fellow players. Whether hunting treasure in far-off lands or building realms of your own, it’s never been this good to be square!"
OS: 10.7.5 or later
Processor: Intel Core i5
Memory: 1 GB RAM
Graphics: Intel HD 4000
Network: Broadband Internet connection
Storage: 1 GB available space
Free download at steampowered.com