Origins: RED40

Players with the RED origin drink blood and consume red dye to gain RED, a resource that fills from the blood and dye they take in. Their body loses hunger at twice the usual rate, and eating rotten flesh gives them far more benefit than it does other characters. Landing attacks on entities feeds the hunger bar first, and RED is only produced once hunger is full. Hits taken drain RED before anything else, and the body cannot regenerate health naturally, so healing arrives as bursts of RED instead.

The mod adds a set of abilities tied to that resource. Attacks are amplified, and running spends RED, so a character who runs hard loses the extra speed. Rewinding the arm lets the character shoot backwards through the air and briefly regenerate, at the cost of hunger. A right-click sword swing can be rewound once before it resets. Players also start with red dye granted on waking up. The mod requires Origins and runs on the server, while clients only need it for keybind support, so a server running the origin needs the mod and players may leave it out. Files are published for Fabric and Quilt for 1.20.1 – 1.20.2, and the code is released under the MIT License but is not open source.