In certain
games (most
famously
role-playing games, though
TradeWars 2002 uses it as well), a representation of a
character's
ideology. Can be as simple as just "
good" or "
evil", but, at least in
role-playing games, is usually more
complex.
The alignment system in AD&D is relatively well-known; it has two axes (Law/Chaos and Good/Evil), yielding nine alignments: