A sly Team Fortress 2 update yesterday added a secret wedding ring as a craftable item. It's called "Something Special for Someone Special" and is described as being a "level 100 ring." The item wasn't revealed in the patch notes. Players posted their discovery on the Team Fortress 2 wiki after digging through the file changes made by the update.
If you play Team Fortress 2 regularly with your loved one, prepare yourself for a sudden proposal. It could happen between control points, it could happen in the middle of a desperate Payload defence. But which map would be best? The spires of badlands have some pretty good views, The roof of the bridge on 2Fort would get everyone's attention. If you want somewhere really, really quiet, there's always Hydro.
It might not be for a real marriage proposal, of course. Perhaps one of the classes has finally plucked up the courage to propose to the Pyro. He/she/it has been waiting long enough. If an in-game marriage proposal does come out of this, Team Fortress 2 will join a unique collection of games, including World of Warcraft and Minecraft, that have been used to pop the question. It'll be hard to beat the Portal 2 proposal below, though. It featured unique dialogue from Glados' voice actor, Ellen McLain, and looked just like this: