The aim is to build the towers shown in the meter, in the same place, at the same height (e.g. three blocks tall) and in the same colour. There are six building spaces. They correspond to the six spaces on the meter (the vine box you double click).
You make people by clicking on the purple square tiles on the left, two people build towers slowly, three people build quickly. You can change people's colour by clicking on them, from red to blue to gold to red. If two people see someone of the a different colour inbetween them, they'll kill him. If there are two of different colours, nothing will happen. If there are three of different colours, the tower gets smaller. If there are several of a different colour i.e. three reds on a blue tower, they'll build it down. If you reach the heavens, God will screw with your people and your towers. So don't.
This is the method for winning.
Double click on the vines. Work out where each tower is placed. On a spot where you need people, triple click, turn them to the right colour. Once they've built it up click on the middle one. When they kill him, click on one of the remaining two, and the two will fight and do nothing. Continue this till you have all towers you need.
Critisism. Make a scoring system. Give us some powers, maybe godlike, to screw with the towers. Perhaps a divine fist, or a catapult. Maybe the ability to call down fire on people. Make the people have amusing speech bubbles to explain to us what's happening. Examples. "Where am I?". "I think therefore I am... or am I" "Oh God, my girlfriend's gonna hate this new outfit(after God changes them)". And some movie quotes maybe, if you can't think of anything. As they get donked and fall off. "It's full of stars". "Take your stinking paws off me, you damn dirty red". "I fart in your general direction." When someone bounces off another group. Something to keep our attention. Maybe add a quote or two from genesis on the babel tower, or a proverb or two, inbetween scenes, that seems strangely relevant. Like... Through wisdom is an house builded; and by understanding it is established. Proverbs 24 v 3. Or, a bit later, Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth: v27. Make the game interesting at every turn.