Developer posts and news about this game.
You can now use Q/E/Z/C as diagonal direction inputs. At the cost of that, you can only use WASD/JKUI layout now. The ZXCV/Arrow controls are disabled as there are no diagonal keys for them.
I must inform that I decided to end this game at Day4 and leave EA soon. This game is too long and too hard for most players even in its current state. So I think it must reach its end. You may lose your current game progress after updating the game. This is because I will improv
Fixed some bugs in Day4 that may lead player to unwanted regions.