Find a player or team

Steam IDs work in any form: STEAM_0:1:12345, 0:1:12345, [U:1:24691], a 17-digit SteamID64, or a Steam profile link, custom ones (steamcommunity.com/id/…) included.
Handles and team names match anywhere in the name once you type three characters.
Other in-game IDs, like Call of Duty keys, and league user IDs match exactly.