| Universe X (I) (0-12) (2000-2001) | ||||
| Series | No. | Date | Year | Title |
| Universe X | 0 | September | 2000 | - (Next chapter is in 4 A Universe X Special #1) |
| Universe X | 1 | October | 2000 | - |
| Universe X | 2 | November | 2000 | - |
| Universe X | 3 | December | 2000 | - |
| Universe X | 4 | January | 2001 | - (Next chapter is in Cap A Universe X Special #1) |
| Universe X | 5 | February | 2001 | - |
| Universe X | 6 | March | 2001 | - |
| Universe X | 7 | April | 2001 | - |
| Universe X | 8 | May | 2001 | - (Next chapter is in Beasts A Universe X Special #1) |
| Universe X | 9 | June | 2001 | - |
| Universe X | 10 | July | 2001 | - |
| Universe X | 11 | August | 2001 | - (Next chapter is in Iron Men A Universe X Special #1) |
| Universe X | 12 | September | 2001 | - |
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