Spectrum48's Philip Sinclair has spent 15 years rewilding a field, "rewilding" being a process of restoring ecosystems to something like a state of 'natural' equilibrium. Now, he's making a videogame about it. That game is Grow Wild, which is currently accepting playtest sign-ups. It sees you restoring biomes across the globe, touching down on sickly square arcadias like an avenging angel equipped with a trowel, magnifying glass, and probably some tartan-pattern slippers, out of shot.
It makes me think a little of Viva Pinata, but it's populated by representations of non-digital creatures, flowers and trees with convincing growth cycles. There are some lovely 'time lapse' shots in the trailer, below.