December 2022
- December 12 - Choujigen Musical Neptune is announced, slated for a premiere on September 2023 in Japan.
November 2022
- November 10 - Neptunia: Sisters vs Sisters English version release date announced, slated for 2023 January 24.
October 2022
- October 27 - Neptunia: Sisters vs Sisters is released in Southeast Asia.
- October 26 - Hyperdimension Neptunia: The Animation: Nep-Nep Festival OVA Blu-ray is released alongside Dimension Tripper Neptune: TOP NEP in Japan.
- October 20 - Adult Neptune makes her debut in Neptunia & Friends.
September 2022
- September 8 - Hyperdimension Neptunia: The Animation: Nep-Nep Festival and Little Purple Sunshine are premiered on Steam.
August 2022
- August 10 - Neptunia: Sisters vs Sisters is announced, slated for an early 2023 release on PS4, PS5 and Steam.
July 2022
- July 13 - Hyperdimension Neptunia: The Animation ~Little Purple in the Sun~ is premiered in Japan.
- July 10 - Hyperdimension Neptunia: The Animation ~Little Purple in the Sun~ JP premiere date announced, slated for July 13.
- July 3 - Hyperdimension Neptunia: The Animation OVA trilogy is premiered at Anime Expo 2022.
May 2022
- May 20 - Hyperdimension Neptunia: The Animation ~Little Purple in the Sun~ is announced.
- May 11 - Neptunia x SENRAN KAGURA: Ninja Wars is released for Steam worldwide.
April 2022
- April 22 - Neptunia x SENRAN KAGURA: Ninja Wars Nintendo Switch port is released in Europe.
- April 21 - Choujigen Game Neptune: Sisters vs Sisters is released in Japan.
- April 19 - Neptunia x SENRAN KAGURA: Ninja Wars Nintendo Switch port is released in North America.
March 2022
- March 17 - Neptunia x SENRAN KAGURA: Ninja Wars Nintendo Switch port is released in Japan.
- March 3 - Neptunia x SENRAN KAGURA: Ninja Wars Steam release date announced, slated for a May 11 release.
February 2022
- February 3 - Neptunia x SENRAN KAGURA: Ninja Wars NA/EU Nintendo Switch port release dates announced, slated for April 19 in NA and April 22 in EU.
January 2022
- January 20 - Dimension Tripper Neptune: TOP NEP is released for Steam worldwide.
- January 6 - Dimension Tripper Neptune: TOP NEP Steam release date announced, slated for a January 20 release.