For Luanti I want to especially recommend the Game “Glitch” which is not minecraft like at all, but surprisingly great.

There is Neverwinter Nights 1 and 2.

Its different, few mods are about extending the original Content, and few about graphics, but so many mods with their own stories, even integrating card games long before Witcher came and with widely different stories. Its awesome.

Also NWN: Mask of the Betrayer is among the best RPG stories I have played, only surpassed by Baldurs Gate 2.