Random Death Match (RDM) is an online gaming term used to refer to the practice of killing or attacking other players without warning or provocation. One example of Random Death Match would be in a first-person shooter game, where a player randomly shoots at other players in the game for no apparent reason. As a moderator, you would take action to punish or suspend the offending player as according to the game’s rules and policies. You would also use this as an opportunity to remind all players that they must refrain from engaging in RDM in the future.