The World Opponent Network (WON) operated in its original form, more or less, from 1996 until about 2001. WON then went through many changes until the last of the WON-based game servers shut down in 2008.^[1] See the main WON article for its complex history after 2000.

WON provided features for online game servers—primarily for multiplayer games—for matchmaking and chat. Games that used these features were tagged as "WON Enabled" in the WON downloads database. While this database ultimately included hundreds of titles regardless of WON capabilities, this is a list of only the WON-enabled titles (with some exceptions as noted below).^[2]

A sister feature of WON, called "WONswap," allowed for user-created DLC sharing.^[3][4] While many titles supported by WONswap were also WON enabled, this was not always the case and this list does not include WONswap-only titles. For example, StarCraft is not in this list because, even though it appeared on WONswap,^[5] the game itself was served by Battle.net instead of WON.

Retail games

Most of these games used WON game servers to enable online multiplayer capabilities. A few, however, such as Shivers II, just used some of the other WON features such as chat (for chatting while playing solo) and puzzle sharing. This list also includes WON-enabled demos of retail games that were, essentially, free online multiplayer mini-games.

While chess.net for Windows (1999) is a retail game that was linked to from WON.net (eventually replacing/outlasting Power Chess), it is not included in the list below because there is no indication that any chess.net products were WON enabled.^[6][7]