Papergames first announced that
Love and Deepspace was in development on 23 October 2020 through a promotional trailer. Pre-registrations for the game opened on 2 November 2023, and a closed beta test was offered to a limited audience from 15 December 2023 to 21 December 2023.
Love and Deepspace was released globally on Android and iOS on 18 January 2024. The game was released as a spin-off to ''
Mr Love: Queen's Choice and as the second installment to the Mr. Love
series. Papergames also marketed Love and Deepspace'' as the "first 3D game" in China. Lizi, the creator of
Love and Deepspace, stated in 2025 that the original objective of Papergames was to create a 3D game that "would be well-received." In creating
Love and Deepspace, Papergames decided on a
science fiction setting, as it was popular in 2018 and 2019, but also decided to add romance elements to create an "interesting clash" of genres. Lizi also stated that the combat system was integrated into
Love and Deepspace as the idea of "fighting side by side" was "crucial" in the concept of the game. She stated that the idea came from how people in relationships view themselves as equals, Version 3.0, subtitled "Cosmic Encounter", was released on 31 December 2024 as part of the game's first-year anniversary, with Caleb introduced as a playable character on 22 January 2025 during the second update, "Cosmic Encounter Part 2". Version 4.0, subtitled "Witnessed By Deepspace", was released on 3 July 2025. The version 2.0 theme song titled "Visions opposées", is sung by
Mikelangelo Loconte and produced in collaboration with the original creators behind
Mozart, l'opéra rock. The version 3.0 theme song is a
Chinese song titled "Cosmic Encounter", performed by vocalist . The version 4.0 theme song titled "Witnessed by Deepspace", is performed by
Angela Zhang. ==Reception==