Installing
Revenge of the Titans is a cinch, especially with the packed-in Steam key. You can't go wrong and you'll find plenty of good support on Puppy Games' site if you run into issues. Testing on an older Mac went well, and the game played well with the Magic Mouse and keyboard shortcuts. There are numerous reminders on the screen about keyboard shortcuts, to the point that you'll see helper pop-ups reminding you about some of the most useful ones. There's no way to really master RTS without learning some keyboard shortcuts, and
Revenge of the Titans gets that. You can master the game with mouse movements, but it's going to be quite a bit harder. The only aspect of the game's interface we didn't like was the fact that when you place a unit, another of the same type is queued up and shown in the interface. It makes a certain amount of sense, and was probably intended to save keystrokes, but it can be distracting when you're trying to focus on enemy movement. Having to manage reloads for units is a tough mechanic, and there's no easy shortcut at first, other than scrolling and clicking on depleted units. Destroyed units have to be replaced while others can be repaired, and you get the idea now how much stuff is happening on screen at any point.
The distinctive design and cute-but-deadly Titans make Revenge of the Titans a keeper. If you missed this when the Humble Indie Bundle made its original rounds, you owe it to yourself to grab a copy now, if you're even remotely interested in strategy gameplay. This is the best combination of retro visuals and modern mechanics we've played in a while.