Faery Tale Adventure, 1986
Yeah, I said "I know". Now that's three games (on top of Bloodmoon), but the video itself still gives off strong Skyrim vibes.
Yes, Faery Tale Adventure II: Halls of the Dead is probably the best-looking isometric CRPG ever created, and it's also fun to play, though not as good it could have been. Its developer, The Dreamer's Guild, went bankrupt while the game was still under production. David Joiner and the others working on it managed to complete and ship the game, but if properly finished it would have included more content (a large island, some side quests, and possibly more). It also suffers from an unfortunate design decision to have movement be indirectly controlled via the mouse rather than directly through keyboard keys, and this is exacerbated by poor pathfinding, since two of the brothers follow whichever one the player is controlling (unless you choose to form separate groups). Also, combat is turn-based but only allows the player to control one brother in each turn (you can switch which one you have control over); they should have allowed the player to control all three brothers during combat, while somewhat lowering the frequency of combat and correspondingly increasing the rewards from combat. And the music is nothing compared to the original. On the plus side, the game combines real-time exploration with turn-based combat, has much better itemization/equipment than the original, adds a skill system (albeit limited), and has an interesting magic system with a multitude of spells.
The Faery Tale Adventure was created for the Commodore Amiga by David Joiner in seven months in 1986. The original version has the best graphics and best music.
BT3 was meant to be played with imported characters. On the off chance someone was decline enough not to have played through BT2, that initial dungeon/quest was meant to put your characters at a spot where your level would be appropriate to continue.
