"Our fourth game is going to be called Subversion," Introversion's blog update of Tuesday announces rather casually, before explaining at length why that's all we're getting.
We do at least get some screenshots of an old prototype from 2002 to look at though. Coo. As Kieron points out on his blog somewhere oft yonder, it's definitely got stairs. Another observation: and possibly background-frogs.
A second blog post from yesterday helps put Subversion into more perspective, at least in terms of its development. Having begun life several years ago, it was then shelved repeatedly thanks to Darwinia and then Defcon, only finally finding its developmentalist feet in the now.
"This time there is only one choice for our next game, and it's a choice we are very happy to make. This game has been bubbling away in the backs of our minds for years, and has been an ongoing late night topic for us ever since we pushed it aside in 2003," writes Chris Delay.
"In that time it has changed and grown and solidified and matured into something quite beautiful, and we're finally in a position to be able to do it justice. It's going to take us a couple of years, but as a company we're getting bored of keeping everything secret for so long, and the decision has been made to open the process up to the world.
"Our next game will be developed in the full glare of the general gaming public, and we hope you enjoy the process as much as we do."