Gets to be redundant after a while. The only thing that mixes it up is gun upgrades. More variety and fix the keyboard controls. Otherwise, it looks good and polished.
No depth to this shallow game, I got bored within minutes. 2/5 for the graphics, otherwise 1/5
Spolier: Nothing changes except the stuff gets slightly faster as you play on.
I've beaten level 8 (of version 1.2), instructions:
Day 1: Build a natural gas plant and a lab. Then get a factory, garbage truck and a dump. When you can, upgrade the natural gas plant twice before night because you will get +90 instead of +40, which really helps with the flood lights. Also build a mine, about 10-12 floodlights, and 2-3 gun turrets.
Night 1: Build 4 more garbage trucks to collect the garbage the monsters drop so they don't get too strong.
Day 2: Clean up any damage, then build 2 more farms. When you can, research Ethanol for the trucks. The oil will run out today, so be prepared for the switch. Next build 2 more farms and 4 geothermal plants (upgrade them once today). Finally expand your flood lights to cover the geothermal plant area (total around 15 floodlights and 5 gun turrets by the time night comes... just make sure to stock pile at least 300 energy for the floodlights).
Night 2: Build about 5 more garbage trucks to clean up the increased amount of monster and garbage.
Day 3: The next night will be hell, so upgrade the ethanol consumption for trucks at the factory once, build a few more farms, and fill up the geothermal spot you built on before. Natural gas production will run out, so that will really hurt the flood lights towards the end of the night. Also upgrade geothermal production asap to stockpile more energy for later. Build a few more floodlights and turrets, and about 2 more mines to supply those turrets. Feel free to experiment here because I haven't gotten a "perfect formula" for what to do.
Night 3: Survive... :) The best shot is to just make sure you repair things that need to be repaired.
Day 4: The next day you will receive LOTS of supplies (natural gas and oil, so your upgraded natural gas plant will come in handy again), so do your best to repair what the monsters destroyed and keep stockpiling enough energy for the floodlights at night.
Night 4: Survive :)
Day 5: Congrats, now use those resources to expand a little and it should be easy coasting from here!