to Simul, except that both human players fight on the same side and at the same time. In Survival mode, there is an endless stream of opponents, fighting either one by one or two in a Simul match. The objective is to beat as many opponents as possible, with the game ending when the player's character or team is defeated, depending on the number of combatants that the player encounters in that custom version of the game. The player can choose to play alone or in Simul or Turns mode, though Single Player mode gives the highest life and life recovered at the end of each round won. Survival mode was the last addition done to the engine. As such, it is not present in any of the DOS versions of M.U.G.E.N. Development Mugen was initially created for MS-DOS by a group of developers from Ann Arbor, Michigan. The first public beta release launched on July 27, 1999. Development of the DOS version ceased when Elecbyte switched to the Linux platform in November 2001. For a time, Elecbyte had posted a request for donations on their site to legally obtain a Windows compiler to make a Windows version of Mugen. However, the development group discontinued the project in 2003 and shut down their site. Later speculation pointed at leaks made public of a private Windows-based Mugen beta that was provided to a small quantity of donors; a later investigation in 2022 stated that the original developers originally created Mugen as an college project and stopped development after the original developers graduated. The meaning of "mugen" (無限) in Japanese, "unlimited" or "infinite", may have influenced the naming. Mugen later expanded into a wide variety of teams and communities such as Mugen Fighters Guild, Mugen Infantry, Infinity Mugen Team, RandomSelect, TheHiddenElect, Mugen Free For All, Unleaded Mugen, Mugen Archive, MugenBR, and Pao de Mugen, among many others. Community in-groups and out-groups formed, with websites often being categorized into factions of "creators" who made content for the engine as artists and programmers, and "warehousers" who sought instead to redistribute others' content for the sake of archival and fair use. Mugen also gained more mainstream press with the creation of the Twitch live stream called Salty's Dream Cast Casino (SaltyBet), where viewers can bet with fake money on CPU matches played using the engine. The private WinMugen beta contained a two-character roster limit, locked