Added another enemy ship to Sub Commander. This time it’s a mine layer. As the name implies, it drops mines. It’s very fast and hard to hit, but it takes only one hit to take him out. Here’s what it looks like:

The mines it drops sink to a random depth and hover there for a while. Like the depth charges, they have a proximity fuse, so stay far away from them! After a while they slowly sink to the bottom and explode. At first I wanted to make it possible to destroy them with a torpedo, but now I decided not to. I think it would be too easy otherwise, but of course I may change my mind if it turns out to be too challenging.
After this I have three more surface ships planned. First of all an anti-submarine cruiser, wich fires large volleys of small depth charges (this actually existed once), an aircraft carriër and a battleship. Those two won’t drop bombs or shoot at you, but they will be very though and require a lot of hits to sink.