This one's sort of a sore point for a lot of role playing fans, and the wound is still raw since it's been freshly inflicted. The game we got was not the game we were promised, as things changed a whole lot during development.
This was supposed to be the game to challenge the DM toolset and editors from Neverwinter Nights and Neverwinter Nights 2. Instead we got something where you can pick some tilesets that randomly generate a dungeon for you – but hey, you get to place monsters during battles.
It's a very standard hack 'n slash action RPG with only a tenuous connection to the 5th edition D&D ruleset. For a more in-depth analysis of what went wrong with Sword Coast Legends, check out our look at the game here.