The game is basically the same thing as Captivity, without much of a difference. The only stage has 4 different enemies, there are achievements to do, you can mod the game or make your own levels/entities in the editor to make your own mods, you can activate cheats, etc.
The game looks decently good, the scenes are as good or better than what are in Captivity, since each monster has 2 or 3 different scenes for when they catch you (which is part of the reason why it's such a shame it is canceled).