Though one can use a mouse to play TreadMarks, one can derive complete enjoyment from the game by using only 5 keys on the keyboard, the four arrow keys and the space bar. Those five keys allow you to do everything in the game, same as using a mouse. Well, except for turning your tank's turret; but even then, you never have to turn your tank's turret to get good at TreadMarks. Despite being released in the year 2000, there is still a small community of people who continue to play the game. And yes, mods abound for TreadMarks; over the years, players have created hundreds of mods for tanks, weapons, and maps. All of the relevant information can be found at the games forums at the LDA website, just click the publishers link to get there.
Michael Hallsted