Memory Leak

The mod starts from a normal survival game, with building, mining and exploring working as usual. Over time the player notices the world becoming less predictable: placed blocks may refuse to stay where they were put, sounds ring out of place, and shadows at the edge of vision vanish when looked at directly. The changes build up slowly, beginning with slight distortions and strange sounds, and the terrain itself starts to decay physically and structurally while familiar blocks and biomes stop feeling real.

The mod is psychological horror rather than an action game. It has no bosses, weapons or jump scares, and it does not attack the player directly. It alters the world around the player until the boundary between the game and whatever comes after it is no longer clear. The world is also meant to hold traces of everything that happened in it, and too many of those traces cause the memory to overflow and leak into new worlds.

Memory Leak runs on client and server, so the server and every player need the mod installed. It is published for Fabric only, across three release versions 26.1 – 26.1.2, and the latest file is 1.0.2 for 26.1.2. The code is not open source; the mod is released under All rights reserved, and public links to its source code, issue tracker and wiki are available.