While half of the challenge is to find out what to research and what mission to run next, i pretty much like the game itself. Devs happened to make pretty nice balance between free space and resources available, noise that attracts too much unwanted attention early in the game, available firepower and need to have all research points to be put into "lategame" devices capable of defeat uncountable zombies comming with the next wave. Every time it feels so good to shred to pieces incoming herd, after slow and accurate beginning of the mission
