I get an error message from the game telling me to activate the "allow steam overlay" feature, yet I have checked both in steam in-game settings and the properties of each individual game, and the box for "allow" is checked. Moreover, shift + tab never opens the steam overlay in SK, but does open the overlay in other games. Not sure what is going on, any ideas? I've already tried re-installing steam with no success. Not sure why overlay works in other games but not SK.