arrjayjee: I feel like playing something similar to Minecraft but not actually Minecraft. Are there any similar games on GOG you can recommend?
You cool with 2D? Cause Terraria is a more grindy, boss/enemy/survival focused than Minecraft is.
I'm going to go against recommending Windforge, as the world is comparatively static, and while open, linear in terms of absolute advancement. And there's a whole heaping helping of issues that I've gone over in my review of the game. It isn't very good at the building aspect for one, due to a 3/4ths isometric they pull on the tiles, making it practically impossible to deal with the fiddly little tiles. Doesn't help that if anything falls off the edge, you probably aren't getting it back.
If Starbound were on GOG, I'd give that a suggest seeing as you have an entire universe to play with, but the game is sadly suffering from feature creep and scope creep. Also, I think the designers are over engineering the game.