There is a tutorial system in Cardboard Town to assist the players. We have prepared a guide for you in this regard.
Population[]
Increase your Population to gain more max Money.
Red Alert[]
Whenever a resource drops below zero; you gain a Red Alert. Get three at the same time and it's game over!
Disaster[]
Uh-oh a disaster! Hover your mouse on the Disaster icon for information.
Trouble[]
Your Trouble-Meter increases by 1 at the end of your day and it looks like some is on the way. Look out!
However, there are also ways to reduce the Trouble-Meter. Either by strategically placing Building Cards with Blue Aura, or by cards, like Carefree or Oktoberfest to reset the Trouble-Meter.
Overbuild[]
You lose 1 
Environment when you destroy a forest. However, there is also the quest card Furniture Factory that demands that, but also creates 
as a new resource.
Rotate and Place[]
Press 'R' key to rotate a structure. Most buildings must connect to a road.
Objective Buildings[]
Red cards or also called Quest Cards have a counter on them. If you don't play them until the counter runs out you gain a Red Alert.
Education[]
Education cards have been added to your deck. You'll lose 1 
Education per 10 
Population you gain. It works like a basic resource; you'll get a Red Alert if it drops below 0. Symbolised by .
Lovely Places[]
Placing a Population building in a green area provides bonus Population for each green square. (Hold TAB to view auras)
Dirty Places[]
Placing a Population building in a red area causes you to gain less Population for each red square.
Handling Troubles[]
Placing a Population building in a teal area causes the Trouble-Meter to decrease by 1 for each building.
Industry[]
Industry cards added to deck. You lose 1 Industry at the end of each day. It works like a basic resource; you'll get a Red Alert if it drops below 0.
Quest Failed[]
Failing to build a Red Card before countdown runs out; results in a Red Alert.
Mayor Button[]
Click on your Mayor Button to draw a card. It's function can be modified with Upgrades!
Winning The Game[]
Complete Star Quests to earn one of the Mega Projects which let's you win the game!