We may have seen the final release of Half-Life co-op mod Sven Co-op last week, but oh, it's far from over. It's getting a free standalone release on Steam, and Valve has given the team engine access to tinker under the hood and add new features.

The free release through Steam will include the base Half-Life campaign so everyone can play without even owning it, the announcement explains.

"Full engine access will allow many previously impossible features to be added to the game, as well as new functionality for Half-Life's level editor," team leader Daniel Fearon said elsewhere. The announcement specifically mentions "larger and more detailed" levels.

The mod's been going for a staggering fifteen years, but apparently is still warming up.