We have just released our first game made with the Unreal Engine 4. Teal is now available on Steam.
It is a turn-based strategy game with a twist. Both players plan their turns which are then applied at the same time. The movement is grid-based, but the weapons can be aimed freely and have unique flight paths.
The game is written almost entirely in C++, with primarily only the menus and the HUD using Blueprints.