Lanse's Combined Challenges

The mod combines a number of challenge mods into one package. Each challenge is started with a command that begins with LCP, and each one can be turned on or off individually, so a server owner chooses which rules apply to a given world. Several challenges act on the terrain and the mobs around players: walking across a surface can turn the ground into lava or gold, touching a wall can kill, and a storm can slowly destroy the world.

Other challenges work through weather and lightning. One creates a nuclear storm that rains acid, which causes trees to decay, while another makes lava rain from the sky and set the world on fire. A blizzard piles up snow without end and converts mobs into strays. Potion rain, a potion death ray, lightning that strikes an entity every minute, mobs that explode on death and mobs that double every minute are also included.

Lanse's Combined Challenges is published for Fabric only, for 1.20.1 – 1.21.11, and it is server-side only, so players join without installing it. The mod is released under the MIT License and is open source, with the source code public. The latest Fabric file targets 1.21.11 and is dated March 8, 2026.