Realms of Rivalry is a turn-based multiplayer strategy game with roleplay elements. The game has many similarities to classic titles like Space Crusade and the X-Com series.

This is exactly the game we've been wanting to play for years. Tired of all the eyecandy-games with little or no substance, we decided to take the matter in our own hands and this is what we came up with :)

Yes, 2-4 players can join up and battle for domination!

Not really. Realms of Rivalry is designed to be played by 2-4 players, but it is possible to play alone - just not as rewarding :)

You can press and hold CTRL while you left-click somewhere on the map to center on that location.

No, a Realm is a 15x15 square random-generated gameworld where 1-4 players can battle against eachother.
All realms have, in theory, the same difficulty level but since the gameworlds are random-generated there will be some differences here and there.

It was kicked to the curb by Mr.Pixel!

The Java sandbox doesn't allow changing screen resolution, but you can toggle between a "semi" fullscreen mode during the game by holding down the alt key and then hitting enter. This mode places a black border around the game map.

It might be that Java is unable to make your gfx card do the job of pasting the alpha transparency-enabled images on screen, thereby making your CPU do all the work. Try updating your gfx card drivers, and switch to a 32bit color-depth screenmode.
If you are using linux, it might be that Java is unable to accelerate image blitting regardless of your card/driver setup. In that case, we regrettably have to say that all you can hope for is that Sun inc. updates their runtime environments :( We are currently using pure Java2D and is in the foreseeable future sticking to that.