Valve says that Team Fortress 2 is "really moving along in development", adding that daily playtests are an office highlight.
"Things have reached a point where people start getting pretty antsy around the office as we get closer and closer to the 6:00 p.m. playtest session," the dev said in a message released through Steam.
"We will be sharing more information about TF2 over the next couple of months, and we'll make sure to point that out to people here.
"We've included an illustration of some of the TF2 characters here that is currently being used for the start-up screen for the game." Ditto. In case you're after some wallpaper.
Last week the developer admitted that Team Fortress 2 - along with mother-game Half-Life 2: Episode 2 and fellow add-on Portal - would be released this coming winter.