History of UFO 50 in Timeline

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

UFO 50 is a video game collection developed and published by Mossmouth, released on September 18, 2024, for Windows. It comprises 50 distinct games spanning various genres and lengths. Created through a collaborative effort by six developers over several years, the game's development process mirrored a game jam, emphasizing rapid prototyping and diverse gameplay experiences within a single package.

1982: Fictional Inception of UFO Soft

In the fictional universe of UFO 50, UFO Soft, the company that developed Action 52, was created in 1982 for the fictional LX-I video game console.

July 1989: Miasma Tower Development

In July 1989, within the fictional universe of UFO 50, the game Miasma Tower was secretly developed by fictional developer Gregory Milk. It details the state of UFO Soft.

1989: Fictional End of UFOSoft

In the fictional universe of UFO 50, UFOSoft developed for the LX-II and LX-III video game consoles until 1989. Miasma Tower details the state of UFO Soft circa July 1989.

2016: Initial UFO 50 Prototypes

In 2016, Derek Yu and Jon Perry decided to work together again on a project, making smaller scale prototypes for ideas which eventually spiraled into the concept for UFO 50.

2017: Official Announcement

UFO 50 was officially announced in 2017 and expected to launch in 2018.

2017: UFO 50 Reveal

UFO 50 was revealed in 2017 on the Mossmouth YouTube channel, and an early version was showcased during Pax West game convention the same year.

2018: Expected Launch Year

In 2018, UFO 50 was initially expected to launch, but it faced development complications and was delayed.

2020: Development Complications with Spelunky 2

In 2020, the simultaneous development of Spelunky 2 caused Suhrke and Yu to step away from the UFO 50 project until Spelunky 2 was released, contributing to the delays.

September 2024: Windows Release

UFO 50 was released for Windows in September 2024. The game features 50 unique games of varying genres and length.

September 18, 2024: UFO 50 Release

After eight years of development, UFO 50 was released on September 18, 2024.

2024: Universal Acclaim

In 2024, UFO 50 received "universal acclaim" according to the review aggregator website Metacritic, with an average score of 91 making it the highest-rated PC exclusive of 2024. 100% of critics recommended the game according to OpenCritic.

2024: Critical Acclaim and Awards

In 2024, UFO 50 was critically acclaimed and became the highest-rated PC-exclusive game on Metacritic. It also won Best Indie Game at the New York Game Awards and received several nominations for the category at various award ceremonies.