The term Rift has been used in several ways in Ultima Online, all of them related in some way to the event cycle involving the Shadowlords, Inu the Crone, and Blackrock. The following locations have been named this way.
- 8 strange locations where the air somehow seemed slightly cracked, broken (like looking through a slightly broken window), at which the Time Lord (or a figure that looked a lot like him) was spotted.
- The now non-functioning Moongate in Magincia, following the Magincia Invasion. On Shards that won the scenario, the gate initially took one to random locations, one of which was a strange, starry location that strongly resembled either the Sea of Stars that surrounds Malas, or the Ethereal Void.