Ultima games in order

In release order

1. 
   Akalabeth: World of Doom1979 · rated 48
2. 
   Ultima1981 · rated 64 · 15 h to beat
3. 
   Ultima II: The Revenge of the Enchantress1982 · rated 56 · 26 h to beat
4. 
   Ultima III: Exodus1983 · rated 51 · 24.5 h to beat
5. 
   Ultima IV: Quest of the Avatar1985 · rated 88
6. 
   Ultima V: Warriors of Destiny1988 · rated 80
7. 
   Ultima VI: The False Prophet1990 · Super Famicom, SNES · rated 84
8. 
   Ultima: Runes of Virtue1991 · Game Boy · rated 60
9. 
   Ultima Underworld: The Stygian Abyss1992 · rated 83
10. 
    Ultima VII: The Black Gate1992 · rated 90
11. 
    Ultima Underworld II: Labyrinth of Worlds1993 · rated 73
12. 
    Ultima VII: Part Two - Serpent Isle1993 · rated 79
13. 
    Ultima VIII: Pagan1994 · rated 70
14. 
    Ultima: Runes of Virtue II1994 · SNES · rated 56
15. 
    Ultima Online1997 · rated 81
16. 
    Ultima IX: Ascension1999 · rated 62
17. 
    Shroud of the Avatar: Forsaken Virtues2018 · rated 45

Top rated

Ultima VII: The Black Gate199290 ratingUltima IV: Quest of the Avatar198588 ratingUltima VI: The False Prophet1990 · Super Famicom, SNES84 ratingUltima Underworld: The Stygian Abyss199283 ratingUltima Online199781 ratingUltima V: Warriors of Destiny198880 ratingUltima VII: Part Two - Serpent Isle199379 ratingUltima Underworld II: Labyrinth of Worlds199373 rating