The “Trusted” achievement requires players to become an admin in a multiplayer game. Players must join an existing multiplayer game created by another player and have their status changed from “guest” to “admin”.
This achievement is easy to get when you play with other players/friends. Simply ask the current game’s admin to change your status to “admin”
How to Change a Player’s Status
A game’s admin can change a player’s status by pressing “ESC” and clicking “Players”. In the “Players” page, simply change a player’s status from “guest” to “admin”. Once the status changes, the player should receive the “Trusted” achievement.
*Note that this achievement previously required players to get the “trusted” status instead of “admin”.