Kerbalism is a gameplay mod for Kerbal Space Program that tries to represent some of the problems a real space program must overcome. Anything will happen coherently to loaded and unloaded vessels alike, without exceptions. All mechanics can be enabled, disabled and utterly configured.
- temperature, radiation, space weather
- living space, comforts, pressure, CO2 levels, humidity
- malfunctions, critical failures, manufacturing quality
- telemetry, relaying, signal strength, data rate attenuation
- data storage, collection, analysis and transmission
- consumption and production in background
- biological and psychological needs, environmental hazards