Originally Posted by Retro-Nerd
You can't conquer the map in diagonal steps without the numpad.
You can use the mouse to give the move order (double right click), so it is a way to by-pass the issue.
Advanced Destroyer Simulator
, you need to use the numpad keys to rotate the cannons/torpedo launchers (cursor keys are used for rudder and speed control.
It remains playable but you lose a lot of flexibility in battle.
On the other hand, you can see it as a way to play it in a pirate fashion, since you have to do ship maneuvers if you want to hit your target correctly.
has similar issues (I don't remember from when I tried it
Hired Guns if you intended to play with "Keyboard 3" control scheme
. Only if you intended to play with several friends and don't have additional joysticks/mice would it be an issue