| Age | Category | Years | Body Length | Tail Length | HD | Damage Bonus | Breath Weapon | MR | AC | Strength | Fear Radius | Fear Save Modifier |
| 1 | Hatchling | 0 | 7-19 | 6-16 | 10 | +1 | 2d12+1 | -1 | -6 | |||
| 2 | Very Young | 6 | 19-31 | 16-28 | 12 | +2 | 4d12+2 | -2 | -5 | |||
| 3 | Young | 16 | 31-43 | 28-38 | 14 | +3 | 6d12+3 | -3 | -4 | |||
| 4 | Juvenile | 26 | 43-55 | 38-50 | 16 | +4 | 8d12+4 | -4 | -3 | |||
| 5 | Young Adult | 51 | 55-67 | 50-60 | 17 | +5 | 10d12+5 | 35% | -5 | -2 | 15 yards | +3 |
| 6 | Adult | 101 | 67-80 | 60-70 | 18 | +6 | 12d12+6 | 40% | -6 | -1 | 20 yards | +2 |
| 7 | Mature Adult | 201 | 80-93 | 70-84 | 19 | +7 | 14d12+7 | 45% | -7 | 0 | 25 yards | +1 |
| 8 | Old | 401 | 93-106 | 84-95 | 20 | +8 | 16d12+8 | 50% | -8 | +1 | 30 yards | 0 |
| 9 | Very Old | 601 | 106-120 | 95-108 | 21 | +9 | 18d12+9 | 55% | -9 | +2 | 35 yards | -1 |
| 10 | Venerable | 801 | 120-134 | 108-120 | 22 | +10 | 20d12+10 | 60% | -10 | +3 | 40 yards | -2 |
| 11 | Wyrm | 1001 | 134-148 | 121-133 | 23 | +11 | 22d12+11 | 65% | -11 | +4 | 45 yards | -3 |
| 12 | Great Wyrm | 1200+ | 148-162 | 133-146 | 24 | +12 | 24d12+12 | 70% | -12 | +5 | 50 yards | -4 |
| Level | Experience | THAC0 | Special Abilities | Spells | Casting Level | Weapon Proficiencies | Nonweapon Proficiencies | Saving Throws | Saving Throws (Priest) | Saving Throws (Mage) | THAC0 (Priest) | THAC0 (Mage) | Spells (Mage) | Spells (Priest) |
| 1 | 500.000 | 11 | Language (High Draconic), Claw, Communicate (18%), Immune to Fire and Gas, Water Breathing, Speak with Animals, Polymorph Self (3/day) | 12th | 4 | 3 | 8, 10, 9, 9, 11 | 6, 10, 9, 12, 11 | 13, 9, 11, 13, 10 | 14 | 17 | 1 | 1 | |
| 2 | 1.000.000 | 9 | 13th | 6 | 7, 9, 8, 8, 10 | 11, 7, 9, 11, 8 | 14 | 17 | 2 1 | 2 1 | ||||
| 3 | 1.500.000 | 7 | Bless (3/day) | 14th | 6 | 5, 7, 6, 5, 8 | 5, 9, 8, 11, 10 | 12 | 16 | 2 2 1 | 2 2 | |||
| 4 | 2.000.000 | 5 | Detect Lie (3/day) | 1 | 15th | 9 | 4, 6, 5, 4, 7 | 5, 8, 7, 10, 9 | 10, 5, 7, 9, 6 | 10 | 15 | 2 2 2 1 | 3 2 1 | |
| 5 | 2.250.000 | 4 | 2 | 16th | 3, 5, 4, 4, 6 | 3 2 2 2 1 | 3 3 2 | |||||||
| 6 | 2.500.000 | 3 | Animal Summoning (1/day) | 2 2 | 17th | 8 | 12 | 3 3 2 2 2 1 | 3 3 2 1 | |||||
| 7 | 2.750.000 | 2 | Luck Bonus (1/day) | 2 2 2 | 18th | 2, 6, 5, 8, 7 | 8 | 14 | 3 3 3 2 2 2 | 4 3 3 2 | ||||
| 8 | 3.000.000 | 1 | Quest (1/day), Detect Gems (1/day) | 2 2 2 2 / 1 | 19th | 15 | 3 3 3 3 2 2 1 | 4 4 3 2 1 | ||||||
| 9 | 3.250.000 | 0 | 2 2 2 2 2 / 2 | 20th | 10 | 8, 3, 5, 7, 4 | 4 3 3 3 3 2 2 | 4 4 3 3 2 1 | ||||||
| 10 | 3.500.000 | -1 | 2 2 2 2 2 2 / 2 2 | 21st | 18 | 6 | 13 | 4 4 3 3 3 3 2 1 | 4 4 4 3 2 2 | |||||
| 11 | 3.750.000 | -2 | 2 2 2 2 2 2 2 / 2 2 2 | 22nd | 4 4 4 3 3 3 3 2 1 | 5 4 4 3 3 2 1 | ||||||||
| 12 | 4.000.000 | -3 | 2 2 2 2 2 2 2 1 / 2 2 2 2 | 23rd | 12 | 21 | 4 4 4 4 3 3 3 3 2 | 5 5 4 4 3 3 2 |