Hypersomnia is a Polish two-dimensional online shooter game created by Patryk Czachurski.[1] The game is inspired by the Hotline Miami and Counter-Strike games.[2] The game development team consists as of 2025 of 4 people, each person being responsible for programming, graphical effects, level designing and website management.[2][3][4]
The game's source code is published on GNU AGPL 3.0 licence.[5] It is available for Windows, macOS and Linux, and can be played in a web browser.[6] The first tournaments related to this game were played at 39th edition of PolyLAN,[7] and also on Poznańska Impreza Wolnego Oprogramowania (Poznań's Free Software Party) in 2025.[8]
Development
The game's development took ten years,[2][9] and it was released on Steam on 28 December 2023.[10] The first commits were registered on GitHub as early as 2013, with game becoming playable around 2017.[4]
A 2018 patent, belonging to Unity[16] referred to the assemblage buckets problem which was conceptualised by Czachurski a few years earlier on one of Stack-Exchange-owned forums.[17][18] Although Hypersomnia's lead developer claimed that no game engine was used in the development process,[9][19] he confirmed to the Kontrabanda technology news website that "a few" external programming libraries were used.[19]
Reception
Both Liam Dawe of GamingOnLinux website and editorial team of lubiegrac.pl website praised the game in terms of its technical aspects.[1][20] Additionally, it received a praise from official GitHub blog team, with them saying about Hypersomnia "giving a lot of fun" and the game "being technically innovative".[21]Linux Magazine in its 275th issue has highlighted Hypersomnia in FOSSPicks category.[22]
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Gameplay on one of community-made maps
Hypersomnia's map editor
More gameplay
