Today Trion Worlds have revealed Trove, a free to play online RPG that has already been in development a year. Trove features dynamically generated worlds that are both fully constructible and destructible, giving players a endless universe of worlds to explore.
Alpha sign ups are already available for the game right here. The developers will be communicating with alpha players on a regular basis to gain feedback as well as giving users a chance to create and build things outside of the game and have them ported into the online worlds.
Personally i think the game looks very similar to Cube World, which i was not particularly impressed with. However you can see the reveal trailer below and can make your own mind up about any similarities it bears with other games.