Yellow acid fumes continuously emitting from crops with greenish-yellow cloud of dust and toxic pale green tinge. Features hazardous chemical aesthetics with corrosive vapor effects creating dangerous laboratory atmosphere indicating toxicity from acid exposure.
How to Obtain
Acid Rain weather event - Natural weather cycle event with green sky and dark fog
Trading and Cooking update introduction - Changed from admin-only to standard weather rotation
Random application - Crops have chance to receive mutation during entire event duration
Fully grown requirement - Only fully mature crops can receive Acidic mutation
Best Way to Get Acidic Mutation
Acid Rain monitoring strategy - Watch for green sky and dark green fog covering map with 50-stud visibility reduction. Ensure crops are fully grown before event begins. Take advantage of +50% growth speed bonus during event to accelerate multi-harvest crop production for additional mutation opportunities.
Pro Tips
Fully grown prerequisite - Only mature crops receive mutation, so harvest immature plants before event or wait for growth
Growth speed bonus - +50% production rate during Acid Rain accelerates seed growth and multi-harvest reproduction
Pet safety confirmed - Unlike speculation, pets and crops are completely safe during corrosive weather
Frozen compatibility - Only mutation that can stack with Frozen Mutation due to special interaction rules
Community Secrets
Admin transition story - Originally admin-exclusive event democratized for regular gameplay in Trading update