So, turns out there was a neat game in the IGF entries that most people haven't spotted yet - the Derek Yu co-created PC indie title Aquaria, which he is talking about at TIGSource.

The title, which is made by two of the people behind Jack Thompson wish fulfilment generator I'm OK, is described as "...an action-oriented, non-linear 2D side-scrolling game. Using an intuitive and fluid mouse control system, Naija can deftly swim through and explore a massive, handcrafted world that is teeming with undersea life. Along the way, she will encounter literally hundreds of different types of plants and animals and explore many ingame miles of hidden caves, lost ruins, and other strange places."

The official Aquaria site has more, including some v.interesting concepts: "In order to make the experience as engaging as possible, we created an interface that lets the player easily control Naija with just a two-button mouse. The HUD is minimal (restricted to only a minimap in the lower-right corner of the screen). In place of textual dialogue that most games rely on we used voice acting to drive the story without interrupting the gameplay." Looking forward to playing this...