- "It's lads like you that give war a bad name!"
- ―The Demoman
Griefing is the act of using or abusing a game mechanic in ways originally unintended by the game's developers for the specific purpose of frustrating, angering, or otherwise negatively impacting the game experience of another player. Griefing can sometimes be difficult to pinpoint because its defining characteristic is intent and not action. An inexperienced player is not necessarily griefing unless their intention is to bother other players.
Griefing is different from cheating. Bug abuse and hacking can be griefing, but only when done specifically to disrupt another player's gameplay, and not when done simply to gain an unfair advantage.