Have a weird bug where the integer for my resources collected have hit near max. I don't know how or why it has happened. I was playing for about an hour and my Max Resources (Orange) hit 4.88e18. Fell asleep at the game last night and my Red, Blue and Gems are also at that integer...
Not too challenging, but moderately entertaining. I like the idea of taking apart the puzzle instead of putting it together. Makes you think outside of the box because you have to think about all the pieces together to find out how to take them apart.
Game completed 3 days, 5 hours, 49 minutes in game time.
Build points and money at the same time, reload, regen, accuracy, armor, then growth. That was my strategy.
Any and ALL down time should be spent on getting more skill points. The instant you max all skills, start growing the tree.