History of Lost Soul Aside in Timeline

By Popular Timelines Editorial Team · Updated: August 8, 2025

Lost Soul Aside is an upcoming action RPG developed by Ultizero Games and published by Sony Interactive Entertainment. The game centers on Kaser's quest to rescue his sister, Louisa, and protect humanity from interdimensional invaders. It is backed by Sony's China Hero Project, a program aimed at supporting Chinese game developers.

2014: Game Development Begins

In 2014, the development of Lost Soul Aside began as a solo project by Yang Bing, who was a graduate student at Dongguk University in South Korea. The game was built using Unreal Engine 4.

July 2016: Initial Reveal on YouTube and Sony's Interest

In July 2016, a promotional video for Lost Soul Aside was uploaded to Yang Bing's YouTube channel, which garnered attention from Sony, leading to initial discussions about a potential collaboration.

July 2016: Initial Reveal on YouTube

On 30 July 2016, Lost Soul Aside was first revealed in a promotional video uploaded to Yang Bing's YouTube channel.

October 2016: PlayStation 4 Timed Exclusive Confirmed

In October 2016, Lost Soul Aside was initially confirmed as a timed exclusive for PlayStation 4.

October 2016: Joining China Hero Project

In October 2016, Sony invited Lost Soul Aside to join its China Hero Project, offering funding and technical support. Yang Bing viewed this opportunity as a big deal.

January 2017: Ultizero Games Founded

In January 2017, with support from Sony and its partners, Yang Bing founded Ultizero Games to further develop Lost Soul Aside.

March 2017: Joining China Hero Project Announced

In March 2017, Sony Interactive Entertainment announced during a press conference that Lost Soul Aside had joined its China Hero Project.

April 2021: PlayStation 5 Version Confirmed

In April 2021, a PlayStation 5 version of Lost Soul Aside was confirmed.

2021: Game Tone Established

In 2021, the overall tone for Lost Soul Aside was set, as showcased in that year's trailer, becoming the reference point for the remainder of the game's development.

November 2022: Sony Announced as Global Publisher

In November 2022, the company announced during a press conference that it would serve as the game's global publisher.

December 2022: Team Size Update

In December 2022, an interview revealed that the development team for Lost Soul Aside consisted of about 40 people, mostly development members.

July 2023: PC Version Confirmed

In July 2023, a PC version of Lost Soul Aside was confirmed.

December 2024: Trailer at PlayStation China 10th Anniversary Party

In December 2024, during the PlayStation China 10th Anniversary Party, Ultizero Games released a trailer revealing that Lost Soul Aside would launch on PlayStation 5 and PC in 2025.

February 2025: Release Date Trailer at State of Play

In February 2025, during the State of Play event, the studio released a trailer announcing the game's initial release date as 30 May 2025.

February 2025: Pre-Orders Available

Starting on 19 February 2025, Lost Soul Aside became available for pre-order, offering bonus incentives such as Kaser's initial reveal outfit (The Origin) and other items. The game is offered in Standard and Digital Deluxe Editions, the latter adding extra content like a soundtrack, art book, cosmetic items, and accessories.

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