Login bridges allow a player to miss logging in for one or more days, but still keep a character's login streak intact. In order to make use of login bridges, players must use the BOOST BRIDGE MIN command to specify the minimum login streak that they are willing to spend a login bridge to maintain, and the BOOST BRIDGE MAX command to specify the maximum number of login bridges they are willing to expend at a single time.
These settings must be set before a login streak is interrupted, not after. The default BOOST BRIDGE MAX setting is 0; that is, to never use a login bridge.
Login bridges are rewarded on the 13th and 24th days of Login Rewards, are available in the SimuCoins Store for 250 SCs for a pack of 5, and are available in-game as a stability contract, which is sometimes a minor prize at paid events.