(covers information from an alternate timeline)
In one possible timeline in 2374, three Nihydron warships joined the USS Voyager in its attack on the Krenim weapon ship. B'Elanna Torres and Harry Kim were assigned to work with the Nihydron to implement temporal shielding aboard their ships. (VOY: "Year of Hell, Part II")
- Star Trek Online's Delta Rising expansion reveals that in the restored timeline, the Nihydron were allied with the Krenim Imperium until the Krenim were defeated by the resurgent Vaadwaur.