Yes. The problem is at the beginning. If you don’t have a chance to take over large territory, you already know that you will lose. So there is no need to fight further. And in well balanced game, it should be still possible to work a solution to take over bigger area and win. Another idea is to add some walking machine that will go and destroy a few viruses until it will be itself destroyed, but this will allow to get a part of ground. Or maybe your own anti-virus that will spread and fight with virus when they will touch each other. You could produce anti-virus for money. Well… I think this game is a great start to enhance it and make it very nice strategy game. But of course its minimalism is an advantage so there should be not many new elements to keep it simple and fun. It’s your game, so it’s up to you :).