Player versus environment (PvE), also known as player versus monster (PvM), and commonly misinterpreted as player versus entity or player versus enemy, is a term used for both single-player and online games, particularly MMORPGs, CORPGs, MUDs, other online role-playing video games and survival games to refer to fighting computer-controlled enemies – in contrast to player versus player (PvP) which is fighting other players in the game. In survival games a large part may be fighting the elements, controlling hunger and thirst, learning to adapt to the environment and exploration.