About this project

Hypersomnia is a community-driven multiplayer top-down shooter developed from scratch in modern C++ without a game engine. It has been online and playable since 2017, combining tactics from Counter-Strike, dynamics from Hotline Miami, and pixel art nostalgia. The game includes 24 unique firearms, 10 community maps, and two game modes: Bomb defusal and Gun game. It features an in-game map editor that allows instant playtesting with friends, even behind a router. The game is available on Steam, Windows, Linux, macOS, and in the browser. It uses deterministic networking to synchronize game state across clients with minimal bandwidth, and supports cross-platform play between browser and native clients. The project is licensed under AGPL v3 and is built with a focus on extensibility and community contribution.