FirmaLifeHardCore

Enclosed rooms are found automatically with a flood fill over the surrounding wall and container blocks, including walls that are placed broken. Each solid wall block adds thermal resistance based on its block tags, doors count as medium resistance, and double doors count for a 4 multiplier. The resulting cellar effective temperature decides whether a room behaves as a greenhouse, and lower values preserve food better. Greenhouse detection depends on insulating blocks forming a closed cellar.

The water pump draws from below and fills an irrigation tank that can hold 500 mB, plus 500 mB for each irrigation tank stacked directly above it, up to three. Fill rate follows the mechanical rotation speed of the pump, and pump reach is set by rotation. Fluid capacity is synced through NeoForge capabilities, and external fluid pipes can connect to the tanks. Installation needs Firmalife and TerraFirmaCraft as required dependencies, with Climate Station required by the greenhouse mechanics. Jade is optional and can display the blocks under the crosshair.

FirmaLifeHardCore is open source under the MIT License and published for 1.21.1 on NeoForge. Every player and the server need a copy of the mod. The latest file is 0.3.4-beta, released 2026-08-31 on the beta channel.