I'm looking for a PC game similar to MC?

I played the game once when I was on the TS. It was similar to Minecraft except that the characters were more detail rich. In addition, there were several enemies you could kill to get something, and you could initially design your character. So a Minecraft MMO. As far as I know the game was never finished but you can download it for free today.

Do you mean Cube World?

Yes indeed!