update · December 26, 2025
Schedule I v0.4.2 Shrooms Update Adds Cultivation and Temperature Systems
Schedule I update v0.4.2 introduces magic mushrooms, a new temperature system, and management upgrades. The patch also adjusts cartel influence limits, boosts coca plant yields, and implements numerous quality-of-life fixes.
Schedule I update v0.4.2 introduces magic mushroom cultivation, a new temperature system, and a range of quality-of-life additions. Players can now grow and sell shrooms using specialized equipment, manage facility temperatures with AC units, and utilize new management tools.
Shrooms Cultivation and Equipment
Magic mushrooms arrive as a new product tier positioned between meth and cocaine, with supplies available from a downtown region supplier. The production process utilizes new items including mushroom beds, spawn stations, substrate, spore syringes, grain bags, spray bottles, and mushroom spawn. Cultivation requires managing a new temperature system using AC units to cool areas, while warm temperatures can boost plant growth speeds. Wild shrooms also spawn randomly in the sewers, and Fungal Phil joins alongside new customers Irene Meadows, Kelly Reynolds, Sherman Giles, and Bruce Norton.
Management and Quality-of-Life Upgrades
Stations, pots, and storage racks can now be renamed using the management clipboard for easier organization. Cleaners can now be assigned to up to six trash cans, up from three. A new unit toggle allows players to switch between metric and imperial measurements. Cartel dealers take smoke breaks to make them easier to locate, and filing cabinets can now store items.
Economy and Plant Tweaks
Cartel influence in Westville is now capped at 500 out of 1000, with old saves scaling down automatically. Coca plant yields increase from 9 to 12, or 18 when boosted with PGR. Customer preferences adjust to favor the new shroom products. Botanist behavior for using drying racks moves down the behavior hierarchy, and employee logic is optimized to reduce pathfinding calculations.
Bug Fixes and Technical Adjustments
Fixed issues where customer favorite effects were missing, object highlights remained stuck on management clipboards, and pupil dilation failed to reset after sobering up. Additives can no longer be applied to fully grown plants. Delivery vans now display items correctly in their trunks, drying rack items align properly, and first-person arms synchronize with player skin color.
Why this patch matters
The v0.4.2 Shrooms Update expands Schedule I with robust farming mechanics, temperature management, and practical facility-organization tools.