Addiction comes in two forms: mental (affecting the ego) and physical (affecting the biomorph). The character or morph is addicted to a drug (p. 317, EP), stimulus (XP), or activity (mesh use) to a degree that impacts the character's physical or mental health. Players and gamemasters should work together to agree on addictions that are appropriate for their game. A character with a major addiction is on the rapid road to ruin. They face cravings every 6 hours, and suffer a −10 DUR penalty as their health is affected. If they fail to get their regular dosage, they suffer a −30 modifier on all actions until they do. If their life hasn't already been ruined by their obsession, it soon will be.